BETA: Renaming `IL2Procedure` to `IProcedure`
	* Also adding generic return type.

git-svn-id: http://svn.l2jdp.com/branches/unstable/L2J_DataPack_BETA@10155 5288da4f-0efc-0310-bd40-8d490a2659fa
BETA: Implementing quest '''Seven Signs, Girl of Doubt''' (10292).
	Reviewed by: jurchiks, Nos, !UnAfraid, Zoey76
	Thanks to: lion

git-svn-id: http://svn.l2jdp.com/branches/unstable/L2J_DataPack_BETA@10156 5288da4f-0efc-0310-bd40-8d490a2659fa