v0.5.0 Al

Release with a couple of bugfixes, comment improvements, and many additions in the gRPC backend.
This is essentially a test release before 1.0.0.

• Support for @note and @warning doc tags (#374)
• Serial connection support for Windows (#375)
• gRPC backend additions and fixes (#376, #377, #382, #385, #397, #405, #407, #409, #416)
• Various build fixes (#378, #379, #383 #386, #413)
• Various bugfixes (#384, #387, #390, #391, #393, #402, #406)
• Removed deprecated armeabi Android build (#392)
• Improved public comments (#394, #415)
• Fixes in examples (#395, #400, #403, )
• Added thread pool for user callbacks (#396)
• Switch from astyle to clang format (#410)
• Sync mode setter for camera (#414)