made the pack completely portable and wrote relevent bat files to go with it

gitportable/mingw64/lib/tcl8.6/msgs/zh_tw.msg

@@ -0,0 +1,8 @@
+# created by tools/loadICU.tcl -- do not edit
+namespace eval ::tcl::clock {
+    ::msgcat::mcset zh_TW BCE "\u6c11\u570b\u524d"
+    ::msgcat::mcset zh_TW CE "\u6c11\u570b"
+    ::msgcat::mcset zh_TW DATE_FORMAT "%Y/%m/%e"
+    ::msgcat::mcset zh_TW TIME_FORMAT_12 "%P %I:%M:%S"
+    ::msgcat::mcset zh_TW DATE_TIME_FORMAT "%Y/%m/%e %P %I:%M:%S %z"
+}