RH_Server: add Subscribepacket handler

Signed-off-by: JordySipkema <jordysipkema@gmail.com>
Merge branch 'master' of github.com:JordySipkema/LD326_RH_A5

Signed-off-by: JordySipkema <jordysipkema@gmail.com>

Conflicts:
	RH_Server/Classes/Authentication.cs