cmake:refine cmake build for apps/examples

[xuxin930]

Summary

Enable the cmake build configuration of most examples directories applications

Impact

Testing

sim

[xuxin930]

hi @xiaoxiang781216 this CI error is not caused by this patch, can it trigger it again?

[xiaoxiang781216]

hi @xiaoxiang781216 this CI error is not caused by this patch, can it trigger it again?
but cmake generate some error message:

====================================================================================
Cmake in present: sim/rtptools
Configuration/Tool: sim/rtptools
------------------------------------------------------------------------------------
  Cleaning...
  Configuring...
CMake Error at cmake/nuttx_add_library.cmake:172 (add_library):
  Cannot find source file:

    /github/workspace/sources/apps/examples/ftpc/ftpc_cmds
Call Stack (most recent call first):
  /github/workspace/sources/apps/CMakeLists.txt:30 (nuttx_add_library)


CMake Generate step failed.  Build files cannot be regenerated correctly.
-- Configuring done (0.4s)
CMake Error at cmake/nuttx_add_library.cmake:172 (add_library):
  Cannot find source file:

    /github/workspace/sources/apps/examples/ftpc/ftpc_cmds
Call Stack (most recent call first):
  /github/workspace/sources/apps/CMakeLists.txt:30 (nuttx_add_library)


-- Generating done (0.2s)
CMake Generate step failed.  Build files cannot be regenerated correctly.
  Building NuttX...
ninja: error: loading 'build.ninja': No such file or directory
ninja: error: loading 'build.ninja': No such file or directory
ninja: error: loading 'build.ninja': No such file or directory
ninja: error: loading 'build.ninja': No such file or directory

[xuxin930]

hi @xiaoxiang781216 this CI error is not caused by this patch, can it trigger it again?
but cmake generate some error message:

====================================================================================
Cmake in present: sim/rtptools
Configuration/Tool: sim/rtptools
------------------------------------------------------------------------------------
  Cleaning...
  Configuring...
CMake Error at cmake/nuttx_add_library.cmake:172 (add_library):
  Cannot find source file:

    /github/workspace/sources/apps/examples/ftpc/ftpc_cmds
Call Stack (most recent call first):
  /github/workspace/sources/apps/CMakeLists.txt:30 (nuttx_add_library)


CMake Generate step failed.  Build files cannot be regenerated correctly.
-- Configuring done (0.4s)
CMake Error at cmake/nuttx_add_library.cmake:172 (add_library):
  Cannot find source file:

    /github/workspace/sources/apps/examples/ftpc/ftpc_cmds
Call Stack (most recent call first):
  /github/workspace/sources/apps/CMakeLists.txt:30 (nuttx_add_library)


-- Generating done (0.2s)
CMake Generate step failed.  Build files cannot be regenerated correctly.
  Building NuttX...
ninja: error: loading 'build.ninja': No such file or directory
ninja: error: loading 'build.ninja': No such file or directory
ninja: error: loading 'build.ninja': No such file or directory
ninja: error: loading 'build.ninja': No such file or directory

Sorry i did not notice, i have fixed🙏