Moved most of Mac/Lib hierarchy to Lib/plat-mac: it can be used both

in MacPython-OS9 and MacPython-OSX (or the equivalent unix Python on
Mac OS X). The only items remaining in Mac/Lib are modules that are
meaningful only for MacPython-OS9 (CFM stuff, MacPython preferences
in resources, etc).

Lib/plat-mac/Carbon/Aliases.py

@@ -0,0 +1,18 @@
+# Generated from 'Aliases.h'
+
+def FOUR_CHAR_CODE(x): return x
+true = True
+false = False
+rAliasType = FOUR_CHAR_CODE('alis') 
+kARMMountVol = 0x00000001
+kARMNoUI = 0x00000002
+kARMMultVols = 0x00000008
+kARMSearch = 0x00000100
+kARMSearchMore = 0x00000200
+kARMSearchRelFirst = 0x00000400 
+asiZoneName = -3
+asiServerName = -2
+asiVolumeName = -1
+asiAliasName = 0
+asiParentName = 1     
+kResolveAliasFileNoUI = 0x00000001