external & build dependences in src tree

- external & build dependences boost licensed
  - ext_depends (external depends)
    - D-YAML
      - tinyendian
    - d2sqlite3
    - imageformats
  - build_depends
    - dub2nix

1 files changed, 97 insertions, 0 deletions

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+# D:YAML
+
+[![travis-ci](https://travis-ci.org/dlang-community/D-YAML.svg?branch=master)](https://travis-ci.org/dlang-community/D-YAML)
+[![codecov](https://codecov.io/gh/dlang-community/D-YAML/branch/master/graph/badge.svg)](https://codecov.io/gh/dlang-community/D-YAML)
+[![code.dlang.org](https://img.shields.io/dub/v/dyaml.svg)](http://code.dlang.org/packages/dyaml)
+
+## Introduction
+
+D:YAML is an open source YAML parser and emitter library for the D programming language.
+It is [almost](https://dlang-community.github.io/D-YAML/articles/spec_differences.html) compliant to the YAML 1.1 specification.
+D:YAML is based on [PyYAML](http://www.pyyaml.org) created by Kirill Simonov.
+
+D:YAML is designed to be easy to use while supporting the full feature set of YAML.
+To start using it in your project, see the [Getting Started](https://dlang-community.github.io/D-YAML/tutorials/getting_started.html) tutorial.
+
+## Features
+
+  - Easy to use, high level API and detailed debugging messages.
+  - Detailed API documentation and tutorials.
+  - Code examples.
+  - Supports all YAML 1.1 constructs. All examples from the YAML 1.1
+    specification are parsed correctly.
+  - Reads from and writes from/to YAML files or in-memory buffers.
+  - UTF-8, UTF-16 and UTF-32 encodings are supported, both big and
+    little endian (plain ASCII also works as it is a subset of UTF-8).
+  - Support for both block (Python-like, based on indentation) and flow
+    (JSON-like, based on bracing) constructs.
+  - Support for YAML anchors and aliases.
+  - Support for default values in mappings.
+  - Support for custom tags (data types), and implicit tag resolution
+    for custom scalar tags.
+  - All tags (data types) described at <http://yaml.org/type/> are
+    supported, with the exception of `tag:yaml.org,2002:yaml`, which is
+    used to represent YAML code in YAML.
+  - Remembers YAML style information between loading and dumping if
+    possible.
+  - Reuses input memory and uses slices to minimize memory allocations.
+  - There is no support for recursive data structures. There are no
+    plans to implement this at the moment.
+
+## Directory structure
+
+| Directory     | Contents                       |
+|---------------|--------------------------------|
+| `./`          | This README, utility scripts.  |
+| `./docs`      | Documentation.                 |
+| `./source`    | Source code.                   |
+| `./examples/` | Example projects using D:YAML. |
+| `./test`      | Unittest data.                 |
+
+## Installing and tutorial
+
+See the [Getting Started](https://dlang-community.github.io/D-YAML/tutorials/getting_started.html).
+Tutorial and other tutorials that can be found at the [GitHub pages](https://dlang-community.github.io/D-YAML/) or in the `docs` directory of the repository.
+
+API documentation is available [here](https://dyaml.dpldocs.info/dyaml.html).
+
+## License
+
+D:YAML is released under the terms of the [Boost Software
+License 1.0](http://www.boost.org/LICENSE_1_0.txt). This license allows
+you to use the source code in your own projects, open source or
+proprietary, and to modify it to suit your needs. However, in source
+distributions, you have to preserve the license headers in the source
+code and the accompanying license file.
+
+Full text of the license can be found in file `LICENSE_1_0.txt` and is
+also displayed here:
+
+    Boost Software License - Version 1.0 - August 17th, 2003
+    
+    Permission is hereby granted, free of charge, to any person or organization
+    obtaining a copy of the software and accompanying documentation covered by
+    this license (the "Software") to use, reproduce, display, distribute,
+    execute, and transmit the Software, and to prepare derivative works of the
+    Software, and to permit third-parties to whom the Software is furnished to
+    do so, all subject to the following:
+    
+    The copyright notices in the Software and this entire statement, including
+    the above license grant, this restriction and the following disclaimer,
+    must be included in all copies of the Software, in whole or in part, and
+    all derivative works of the Software, unless such copies or derivative
+    works are solely in the form of machine-executable object code generated by
+    a source language processor.
+    
+    THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+    IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+    FITNESS FOR A PARTICULAR PURPOSE, TITLE AND NON-INFRINGEMENT. IN NO EVENT
+    SHALL THE COPYRIGHT HOLDERS OR ANYONE DISTRIBUTING THE SOFTWARE BE LIABLE
+    FOR ANY DAMAGES OR OTHER LIABILITY, WHETHER IN CONTRACT, TORT OR OTHERWISE,
+    ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+    DEALINGS IN THE SOFTWARE.
+
+## Credits
+
+D:YAML was created by Ferdinand Majerech aka Kiith-Sa and is handled by the [dlang-community](https://github.com/dlang-community) organization since 2017.
+Parts of code based on [PyYAML](http://www.pyyaml.org) created by Kirill Simonov.