[C++] Rename Qt5 to Qt

[wing328]

Rename qt5 to qt in the code, samples, configs and more (for both client and server generators)

cc @ravinikam (2017/07) @stkrwork (2017/07) @etherealjoy (2018/02) @MartinDelille (2018/03) @muttleyxd (2019/08)

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  ./mvnw clean package 
  ./bin/generate-samples.sh
  ./bin/utils/export_docs_generators.sh
  

  Commit all changed files.
  This is important, as CI jobs will verify all generator outputs of your HEAD commit as it would merge with master.
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[etherealjoy]

LGTM, small nit the cmake file also could be updated to say cpp-qt-client as well

[wing328]

@etherealjoy pushed another commit to rename qt5 to qt in the templates.

$ grep -R -i qt5 modules/openapi-generator/src/main/resources/cpp-qt-*
modules/openapi-generator/src/main/resources/cpp-qt-client/CMakeLists.txt.mustache:14:find_package(Qt5Core REQUIRED)
modules/openapi-generator/src/main/resources/cpp-qt-client/CMakeLists.txt.mustache:15:find_package(Qt5Network REQUIRED){{#contentCompression}}
modules/openapi-generator/src/main/resources/cpp-qt-client/CMakeLists.txt.mustache:35:target_link_libraries(${PROJECT_NAME} PRIVATE Qt5::Core Qt5::Network {{#contentCompression}} ${ZLIB_LIBRARIES}{{/contentCompression}})
modules/openapi-generator/src/main/resources/cpp-qt-qhttpengine-server/src-CMakeLists.txt.mustache:20:find_package(Qt5Core REQUIRED)
modules/openapi-generator/src/main/resources/cpp-qt-qhttpengine-server/src-CMakeLists.txt.mustache:21:find_package(Qt5Network REQUIRED)
modules/openapi-generator/src/main/resources/cpp-qt-qhttpengine-server/src-CMakeLists.txt.mustache:31:    ${Qt5Core_INCLUDE_DIRS}
modules/openapi-generator/src/main/resources/cpp-qt-qhttpengine-server/src-CMakeLists.txt.mustache:32:    ${Qt5Network_INCLUDE_DIRS}
modules/openapi-generator/src/main/resources/cpp-qt-qhttpengine-server/src-CMakeLists.txt.mustache:44:target_link_libraries(${PROJECT_NAME} Qt5Core Qt5Network ssl crypto qhttpengine)
modules/openapi-generator/src/main/resources/cpp-qt-qhttpengine-server/Dockerfile.mustache:7:        qt5-qtbase-dev \
modules/openapi-generator/src/main/resources/cpp-qt-qhttpengine-server/Dockerfile.mustache:8:        qt5-qttools-dev
modules/openapi-generator/src/main/resources/cpp-qt-qhttpengine-server/Dockerfile.mustache:22:        qt5-qtbase \

Now the templates have the above references to qt5 and I think these are valid (library names, etc)

[etherealjoy]

Now the templates have the above references to qt5 and I think these are valid (library names, etc)

For now those are valid, in the future we can improve if there is a version agnostic cmake package