Cleanup/refactor: Rename BKE_library files to BKE_lib.

Note that `BKE_library.h`/`library.c` were renamed to
`BKE_lib_id.h`/`lib_id.c` to avoid having a too generic name here.

Part of T72604.

source/blender/python/bmesh/bmesh_py_types.c

@@ -30,7 +30,7 @@
 
 #include "BKE_customdata.h"
 #include "BKE_global.h"
-#include "BKE_library.h"
+#include "BKE_lib_id.h"
 #include "BKE_mesh.h"
 #include "BKE_mesh_runtime.h"
 

source/blender/python/gpu/gpu_py_offscreen.c

@@ -33,7 +33,7 @@
 #include "BLI_utildefines.h"
 
 #include "BKE_global.h"
-#include "BKE_library.h"
+#include "BKE_lib_id.h"
 #include "BKE_scene.h"
 
 #include "DNA_screen_types.h"

source/blender/python/intern/bpy_app.c

@@ -50,7 +50,7 @@
 #include "BKE_appdir.h"
 #include "BKE_blender_version.h"
 #include "BKE_global.h"
-#include "BKE_library_override.h"
+#include "BKE_lib_override.h"
 
 #include "DNA_ID.h"
 

source/blender/python/intern/bpy_library_load.c

@@ -36,7 +36,7 @@
 
 #include "BKE_context.h"
 #include "BKE_idcode.h"
-#include "BKE_library.h"
+#include "BKE_lib_id.h"
 #include "BKE_main.h"
 #include "BKE_report.h"
 

source/blender/python/intern/bpy_rna_anim.c

@@ -40,7 +40,7 @@
 #include "BKE_fcurve.h"
 #include "BKE_global.h"
 #include "BKE_idcode.h"
-#include "BKE_library.h"
+#include "BKE_lib_id.h"
 #include "BKE_report.h"
 
 #include "RNA_access.h"

source/blender/python/intern/bpy_rna_id_collection.c

@@ -29,8 +29,8 @@
 #include "BLI_bitmap.h"
 
 #include "BKE_global.h"
-#include "BKE_library.h"
-#include "BKE_library_query.h"
+#include "BKE_lib_id.h"
+#include "BKE_lib_query.h"
 #include "BKE_main.h"
 
 #include "DNA_ID.h"

source/blender/python/mathutils/mathutils_bvhtree.c

@@ -47,7 +47,7 @@
 
 #  include "BKE_customdata.h"
 #  include "BKE_editmesh_bvh.h"
-#  include "BKE_library.h"
+#  include "BKE_lib_id.h"
 #  include "BKE_mesh.h"
 #  include "BKE_mesh_runtime.h"