feat: Add methods for setting max message size limits (i.e., MTU negotiation) [MTT-6214]#2530

ShadauxCat merged 7 commits intodevelopUnity-Technologies/com.unity.netcode.gameobjects:developfrom

feat/allow_setting_message_size_limitsUnity-Technologies/com.unity.netcode.gameobjects:feat/allow_setting_message_size_limitsCopy head branch name to clipboard