Move Message sizes asserts to their definitions, and add missing ones.
Move Message sizes asserts to their definitions, and add missing ones.

Mikaela/znc,markusj/znc,Mikaela/znc,znc/znc,BtbN/znc,Phansa/znc,znc/znc,BtbN/znc,Mikaela/znc,Mkaysi/znc,evilnet/znc,kashike/znc,Adam-/znc,kashike/znc,evilnet/znc,BtbN/znc,DarthGandalf/znc,dgw/znc,markusj/znc,Phansa/znc,znc/znc,DarthGandalf/znc,GLolol/znc,Phansa/znc,Mkaysi/znc,GLolol/znc,elyscape/znc,Adam-/znc,DarthGandalf/znc,jreese/znc,dgw/znc,psychon/znc,evilnet/znc,evilnet/znc,kashike/znc,BtbN/znc,markusj/znc,kashike/znc,psychon/znc,Zarthus/znc,Mkaysi/znc,elyscape/znc,elyscape/znc,Zarthus/znc,Phansa/znc,Adam-/znc,wolfy1339/znc,Mikaela/znc,Zarthus/znc,evilnet/znc,wolfy1339/znc,jreese/znc,Mkaysi/znc,znc/znc,evilnet/znc,psychon/znc,markusj/znc,GLolol/znc,Zarthus/znc,wolfy1339/znc,Mikaela/znc,Mikaela/znc,wolfy1339/znc,jreese/znc,znc/znc,wolfy1339/znc,DarthGandalf/znc,dgw/znc,dgw/znc,psychon/znc,jreese/znc,markusj/znc,Phansa/znc,DarthGandalf/znc,BtbN/znc,Adam-/znc,psychon/znc,elyscape/znc,psychon/znc,Adam-/znc,jreese/znc,BtbN/znc,GLolol/znc,kashike/znc,DarthGandalf/znc,wolfy1339/znc,znc/znc,dgw/znc,Phansa/znc,Adam-/znc,Mkaysi/znc,GLolol/znc,Zarthus/znc,Zarthus/znc,elyscape/znc,markusj/znc,jreese/znc,Mkaysi/znc,dgw/znc,Mkaysi/znc,Mikaela/znc,GLolol/znc,elyscape/znc,Adam-/znc,kashike/znc