ADD: SHA1 hashes calculations in sha1.c and LUA

client/lualibs/utils.lua

@@ -99,7 +99,20 @@ local Utils =
 		end
 		return nil
 	end,
-	
+
+	------------ SHA1 hash
+	-- Takes a hex string and calculates a SHA1 hash
+	Sha1 = function(s)
+		if s == nil then return nil end
+		if #s == 0 then return nil end
+		if  type(s) == 'string' then
+			local utils = require('utils')
+			--local asc = utils.ConvertHexToAscii(s)
+			local hash = core.sha1(s)
+			return hash
+		end
+		return nil
+	end,	
 	
 	-- input parameter is a string
 	-- Swaps the endianess and returns a number,