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

gitportable/mingw64/lib/tcl8.6/tzdata/Asia/Tokyo

@@ -0,0 +1,14 @@
+# created by tools/tclZIC.tcl - do not edit
+
+set TZData(:Asia/Tokyo) {
+    {-9223372036854775808 33539 0 LMT}
+    {-2587712400 32400 0 JST}
+    {-683802000 36000 1 JDT}
+    {-672310800 32400 0 JST}
+    {-654771600 36000 1 JDT}
+    {-640861200 32400 0 JST}
+    {-620298000 36000 1 JDT}
+    {-609411600 32400 0 JST}
+    {-588848400 36000 1 JDT}
+    {-577962000 32400 0 JST}
+}