Enhancements for Dependent packages check advisor

[NingW101]

Currently, dep_check advisor will just remove the find_package(XXX) statement but ignore other operations related to this emscripten ported library , which may cause the errors block the building process. We should make enhancements to avoid this problem.

• For emscripten ported libraries (as shown in the above pictures), webinizer will add -sUSE_LIBXXX into the compiler & linker flags, and emscripten will take responsibilities of linking libraries and including header files directories, so except for find_package statement, the include_directories(${XX_INCLUDE_DIRS}), target_link_libraries(target ${XX_LIBRARIES}) and other operations related to this library are not necessary any more.
• For the dependencies added from webinizer UI, should also remove the find_package(DEP) statement from the main project, besides, should adjust the statement pattern to target_link_libraries(target -ldepName)

[NingW101]

For emscripten ported libraries (as shown in the above pictures), webinizer will add -sUSE_LIBXXX into the compiler & linker flags, and emscripten will take responsibilities of linking libraries and including header files directories, so except for find_package statement, the include_directories(${XX_INCLUDE_DIRS}), target_link_libraries(target ${XX_LIBRARIES}) and other operations related to this library are not necessary any more.

enhanced with #60

Solution updates:

Following the action for removing find_package(XXX REQUIRED) and the action for adding -s USE_XXX flag, we will add action to make file change to remove the ${XXX_LIBRARIES}) and ${XXX_INCLUDE_DIRS} strings in the build_root/CMakeLists.txt file.

Most of these related statements went well after delete like the modification target_include_directories( ${SDL2_INCLUDE_DIRS} src ) --> target_include_directories( src), except the statement string(STRIP ${SDL2_LIBRARIES} SDL2_INCLUDE_DIRS) -> string(STRIP SDL2_INCLUDE_DIRS) will throw the error as following in our projects testing journey so far.

  CMake Error at CMakeLists.txt:18 (string):
     string sub-command STRIP requires two arguments.

To handle this error, on the base of dep_check advisor enhancement, we enhance the stripAdvisor at the same time to handle this cmake error.

Updates

[NingW101]

For the dependencies added from webinizer UI, should also remove the find_package(DEP) statement from the main project, besides, should adjust the statement pattern to target_link_libraries(target -ldepName)

There are some common scenarios that the find_package(XXX REQUIRED) is defined in sub-cmake file and included in main cmakelists.txt file, and this package is also added as dependency in main projects. In this case, find_package statement (in sub-cmake file) is unnecessary anymore and should be removed or commented, otherwise it will lead to errors occurring.