[mma] cleaned includes (eclipse-ecal#1372)

Added missing include (eclipse-ecal#1356)

Needed for Ubuntu 18.04

check validity of message drop event callback before actually calling…

… it. (eclipse-ecal#1346) (eclipse-ecal#1354)

Co-authored-by: Rex Schilasky <49162693+rex-schilasky@users.noreply.github.com>

check validity of message drop event callback before actually calling…

… it. (eclipse-ecal#1346) (eclipse-ecal#1355)

Co-authored-by: Rex Schilasky <49162693+rex-schilasky@users.noreply.github.com>

Core: Fixed missing include (eclipse-ecal#1342)

Added #include <mutex> to registration_provider.h. This is required for Ubuntu 18.04

[Core] Call Destroy() in destructor of CUDPReceiver.

Do not show eCAL deprecation warnings, when building ecal_core and ec…

…al_core_c (eclipse-ecal#1226)

GCC 13: Added workaround for termcolor bug (missing include) (eclipse…

…-ecal#1228)

Currently (2023-10-26) termcolor does not include the cstdint header file, but it is needed for Ubuntu 23.10 / gcc 13.2: ikalnytskyi/termcolor#72

Documentation: Add / Fix documentation. (eclipse-ecal#1179)