add bags and plantlife to submodules

.gitmodules

@@ -31,3 +31,9 @@
 [submodule "mods/3d_armor"]
 	path = mods/3d_armor
 	url = https://github.com/stujones11/minetest-3d_armor
+[submodule "mods/bags"]
+	path = mods/bags
+	url = https://github.com/cornernote/minetest-bags
+[submodule "mods/plantlife_modpack"]
+	path = mods/plantlife_modpack
+	url = https://git.tchncs.de/Illuna-Minetest/plantlife_modpack.git

bags @ f17d829b

+Subproject commit f17d829b66afda596d6eae450443b15d2fd95031

plantlife_modpack @ b7f394c5

+Subproject commit b7f394c5fe2cbecaff6bbc012d42b497327850b3