add API documentation for mcl_commands

mods/CORE/mcl_commands/API.md

@@ -0,0 +1,59 @@
+# API documentation of mcl_commands
+
+The mcl_commands API allows you to register and overide complex commands.
+This mod is derivated from ChatCommandBuilder by rubenwardy
+
+## Technical differences from ChatCommandBuilder
+
+* subcommand aditional specific privs
+* new types: `json` an maybe more in the future
+
+
+## Public Functions
+
+### `mcl_commands.register_command("exemple", def)`
+
+This is a function which is called when an item is dispensed by the dispenser.
+These are the parameters:
+
+```
+mcl_commands.register_command("exemple", {
+	func = function(cmd)                                      --function executed on registration
+		cmd:sub(":name:username title :params:json", {        --create a new subcommand called "title" with defined patterns
+			func = function(name, target, json)
+				return a_cool_function(target, json)          --function executed if the params match the patterns
+			end,
+			privs = {settime = true},                         --subcommand aditional specific privs
+		})
+	end,
+    description = "Controls text displayed on the screen.",   --the description of the command
+	params = "<target> command <params>",                     --very basic explaination of the syntax of the command (will be semi-automatic in the future)
+    privs = {server = true},                                  --global privs
+})
+```
+
+Register a complex chatcommand. If a chat command with the same name is already registered, the program will fail.
+
+### `mcl_commands.overide_command("exemple", def)`
+
+Same as above but will overide existing command.
+
+### paterns
+
+mcl_commands adds many types for patterns
+If not specified, a value will be by default with the word pattern.
+
+* pos            value must be pos
+* text           value must be text  WARNING: this pattern must be the last pattern of the subcommand!!
+* number		 value must be number
+* int			 value must be integer
+* word			 value must be word
+* alpha			 value must be alphanumeric
+* modname        value must be a valid modname
+* alphascore	 
+* alphanumeric   
+* username:      value must be a valid username
+* json:          value must be a json string  (will be parsed automaticaly)
+
+TODO:
+* color          value must be a color string or a valid named color