used to verify the arguments and types of block create functions, etc., but
start by validating parameters for now. This helps a lot when writing .ctrl
files as the parser will now stop with a sensible error instead of a segfault
when arguments are mismatched.

Some example output:
ERROR: Invalid number of arguments! Expecting 1 argument instead of 3.
ERROR: Argument mismatch while trying to set 'divider' param on block 'heater'
ERROR: pand-test.ctrl:169: Error setting parameter

ERROR: Argument mismatch in argument 1. Expected argument of type 'int' instead of 'char*'
ERROR: Argument mismatch while trying to set 'divider' param on block 'heater'
ERROR: pand-test.ctrl:169: Error setting parameter

	modified:   controller/controller_load.c