Add/cose c

[prince-chrismc]

Specify library name and version: cose-c/cci.20200430

closes #1314

I tried to build the head but it fails with the current cbor library.

• I've read the guidelines for contributing.
• I've followed the PEP8 style guides for Python code in the recipes.
• I've used the latest Conan client version.
• I've tried at least one configuration locally with the
  conan-center hook activated.

[conan-center-bot]

Some configurations of 'cose-c/cci.20200430' failed in build 1 (2a2850e7836e7f3bb3f98f9645cf3bd414c1cb21):

• Macos x86_64, Release, apple-clang 10.0, libc++ . Options: cose-c:shared-True
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• Macos x86_64, Release, apple-clang 9.1, libc++ . Options: cose-c:shared-True
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• Macos x86_64, Release, apple-clang 11.0, libc++ . Options: cose-c:shared-True
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• Macos x86_64, Debug, apple-clang 9.1, libc++ . Options: cose-c:shared-True
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[conan-center-bot]

Some configurations of 'cose-c/cci.20200430' failed in build 3 (3e6c67bdec3afee63bd7422634ddabf23d4ab810):

• Windows x86_64, Release, Visual Studio 15, MT. Options: cose-c:shared-True
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• Windows x86_64, Release, Visual Studio 16, MT. Options: cose-c:shared-True
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• Windows x86_64, Release, Visual Studio 15, MD. Options: cose-c:shared-True
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• Windows x86_64, Debug, Visual Studio 14, MTd. Options: cose-c:shared-True
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[conan-center-bot]

Failure in build 4 (9e97c428f8430e71576c6d05347394ebcbccbbb9):

• cose-c/cci.20200430
  • Hooks errors detected:
    • [HOOK - conan-center.py] pre_export(): ERROR: [CMAKE WINDOWS EXPORT ALL SYMBOLS (KB-H049)] The CMake definition CMAKE_WINDOWS_EXPORT_ALL_SYMBOLS requires CMake 3.4 at least. Update CMakeLists.txt to 'cmake_minimum_required(VERSION 3.4)'. (https://github.com/conan-io/conan-center-index/blob/master/docs/error_knowledge_base.md#KB-H049)

[conan-center-bot]

All green in build 5 (9c4fc298507ce01869bc34022e849b3a411be00b)! 😊

• cose-c/cci.20200430: Generated 88 packages. All logs here

[madebr]

I see some commits by @gocarlos since 20200430 at https://github.com/cose-wg/COSE-C/commits/master
Do you have an idea why current master does not work with our packaged version of cn-cbor?

[prince-chrismc]

API breaks 💣

[gocarlos]

We converted cose c to cpp, so we need now a cpp compiler

[madebr]

Thanks for the reply!

[conan-center-bot]

All green in build 6 (4119331d039080aafcb82fbfe1be699d823fb311)! 😊

• cose-c/cci.20200430: Generated 88 packages. All logs here