libproxy: add libproxy/0.4.15 recipe

[madebr]

Specify library name and version: libproxy/0.4.15

• Depends on libmodman: add libmodman/2.0.1 recipe #2865

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• 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]

Failure in build 1 (28f078e9285983d66be29ff24ceb56866817dee6):

• libproxy/0.4.15
  • Hooks errors detected:
    • [HOOK - conan-center.py] pre_export(): ERROR: [CMAKE VERBOSE MAKEFILE (KB-H046)] The CMake definition 'set(CMAKE_VERBOSE_MAKEFILE ON)' is not allowed. Remove it from recipes/libproxy/all/test_package/CMakeLists.txt. (https://github.com/conan-io/conan-center-index/blob/master/docs/error_knowledge_base.md#KB-H046)
    • [HOOK - conan-center.py] pre_export(): ERROR: [CMAKE VERSION REQUIRED (KB-H048)] The test_packages/CMakeLists.txt requires CMake 3.1 at least. Update to 'cmake_minimum_required(VERSION 3.1)'. (https://github.com/conan-io/conan-center-index/blob/master/docs/error_knowledge_base.md#KB-H048)

[conan-center-bot]

Failure in build 2 (7b74c6399c1d91fd0ee2bd0c072b404b9d37838d):

• Error processing recipe (ref 'libproxy/0.4.15'): Linux x86_64, Release, gcc 4.9, libstdc++ . Options: libproxy:shared-False
  You are depending on 'libmodman/2.0.1' but it is not in the repository

[stale]

This pull request has been automatically marked as stale because it has not had recent activity. It will be closed if no further activity occurs. Thank you for your contributions.

[Croydon]

@SSE4 Would the bot ignore this PR if this would have been marked as a draft? It is blocked by another PR

[uilianries]

It's a good opportunity to re-visit the cause of blocking. Even for drafts, we can look what is missing and offer support.

[stale]

This pull request has been automatically marked as stale because it has not had recent activity. It will be closed if no further activity occurs. Thank you for your contributions.

[stale]

This pull request has been automatically closed because it has not had recent activity. Thank you for your contributions.