Resolve unused argument warning in SCPI_ErrorAddInternal

info_len may be unused if USE_DEVICE_DEPENDENT_ERROR_INFORMATION is 0

Correct text parameter example

v2.0: New parser with better specification compliance

Solve j123b567#16 Multiple Identical Capabilities

Now it is possible to have pattern OUT#:FREQuency
and commands OUT1:FREQ, OUT2:FREQ and OUT:FREQ

Unsupported range is up to user

In handler function, just call SCPI_CommandNumbers and it will fill
appropriate array

Refactoring of arbitrary data, special numbers

 - refactoring of handling arbitrary program data
 - refactoring of handling special numbers and bool as choice

Fix findCommand const parameter (pull-request j123b567#17)

Added new features

	- boolean parameters (andrey-nakin)
	- choice parameters (andrey-nakin)
	- correct result of SYSTEM:VERSION
	- add support for custom IDN
	- resolved some bugs

Version 1.0 - Basic SCPI parser