Minor improvements to the vcs ignore files
diff --git a/.hgignore b/.hgignore
index 58c73fc..cf9453a 100644
--- a/.hgignore
+++ b/.hgignore
@@ -94,7 +94,10 @@
 *.gcda
 *.gcno
 *.gcov
+ipch/
 coverage.info
 Tools/msi/obj
 Tools/ssl/amd64
 Tools/ssl/win32
+.vs/
+.vscode/