New files added (part of C code package).

Author: rijnb

mapcoder/mapcode_library.doc

@@ -0,0 +1,28 @@
+The files
+	basics.h
+	mapcoder.c
+	mapcoder.h
+together provide routine to encode/decode mapcodes.
+
+Documentation, including example snippets of C source code, can be found in
+	mapcode_library.doc 
+Also see www.mapcode.com for background and reference materials.
+
+Note: this version may be restricted to a particular area of the Earth!
+In that case, basics.h will state a version number of the for 
+	#define mapcode_cversion "1.2xxx"
+where "xxx" states the geographical limitation.
+
+
+version history
+---------------
+1.25 initial release to the public domain
+1.26 added alias OD ("Odisha") for indian state OR ("Orissa")
+1.27 improved (faster) implementation of the function isInArea
+1.28 bug fix for the needless generation of 7-letter alternatives to short mapcodes in large states in India
+1.29 also generate country-wide alternative mapcodes for states
+1.30 updated the documentation and extended it with examples and suggestions
+1.31 added lookslikemapcode() and coord2mc1()
+1.32 fixes 1.29 so no country-wide alternative is produced in the edge case where there simply is no country code
+
+