[TeX] Ignore generated files by 'vhistory' package

The `vhistory` package generates two files, with `.hst` and `.ver` extensions.

TeX.gitignore

@@ -205,6 +205,10 @@ pythontex-files-*/
 # todonotes
 *.tdo
 
+# vhistory
+*.hst
+*.ver
+
 # easy-todo
 *.lod