patch 9.0.1001: classes are not documented or implemented yet

Problem:    Classes are not documented or implemented yet.
Solution:   Make the first steps at documenting Vim9 objects, classes and
            interfaces.  Make initial choices for the syntax.  Add a skeleton
            implementation.  Add "public" and "this" in the command table.
diff --git a/Filelist b/Filelist
index e241e17..385ec68 100644
--- a/Filelist
+++ b/Filelist
@@ -163,6 +163,7 @@
 		src/version.h \
 		src/vim.h \
 		src/vim9.h \
+		src/vim9class.c \
 		src/vim9cmds.c \
 		src/vim9compile.c \
 		src/vim9execute.c \
@@ -327,6 +328,7 @@
 		src/proto/usercmd.pro \
 		src/proto/userfunc.pro \
 		src/proto/version.pro \
+		src/proto/vim9class.pro \
 		src/proto/vim9cmds.pro \
 		src/proto/vim9compile.pro \
 		src/proto/vim9execute.pro \