update .gitignore to cover more generated files

Signed-off-by: Oguzhan Turk <stkyoht@hotmail.com>

Author: TaeZStkyoht

.gitignore

@@ -3,6 +3,8 @@
 Makefile
 Makefile.in
 aclocal.m4
+ax_*.m4
+pkg.m4
 aminclude_static.am
 autom4te.cache/
 compile
@@ -16,6 +18,7 @@ install-sh
 libtool
 libtpm2.la
 ltmain.sh
+stamp-h1
 m4/libtool.m4
 m4/ltoptions.m4
 m4/ltsugar.m4
@@ -26,6 +29,7 @@ src/.dirstamp
 src/.libs/
 src/*.o
 src/*.lo
+src/config.h
 tpm2tss-genkey
 libtpm2tss.la
 *.gcno
@@ -44,3 +48,5 @@ test/error_tpm2-tss-engine-common
 test/*.o
 config.h.in
 VERSION
+build/
+.vscode/