And enable to copy back the return value of wasm main function when calling wasm_application_execute_main, add license headers in wasm-c-api samples, fix several issues reported by klocwork.
And fix libc-builtin print float issue
Add a list to track all third party components
Fix compile error when MEMORY_TRACING is enabled
Signed-off-by: Wenyong Huang <wenyong.huang@intel.com>