fixed includes and compiler warnings + inline functions

CMakeLists.txt

README.md

src/core/sap.c

src/include/aes67/arch.h

src/include/aes67/net.h

src/include/aes67/sap.h

src/include/aes67/sdp.h

src/include/aes67/utils/sapsrv.h

src/utils/mdns-avahi.c

src/utils/rav-publish/rav-publish.c

src/utils/rtsp-describe/rtsp-describe.c

src/utils/sap-pack/sap-pack.c

src/utils/sap-unpack/sap-unpack.c

src/utils/sapd/sapd.c

src/utils/sapsrv.c

src/utils/sdp-gen/sdp-gen.c