Chip simplification

[Christian-B]

Combines/replaces #245, #244

Renaming:

In Chip/Processor:
"is_monitor" -> "scamp"
"user" -> "placable"
...Version
"n_non_user_cores" -> "n_scamp_cores"
TODO: "monitor" in Json passed to Java
Note: term "monitor" still kept for none graphs dependant vertices added to all Chips

Remove Processor Class

The Processor class has been removed.

• Version now has clock_speed_hz and dtcm_bytes
• Processor.is_monitor now handled by Chip methods

Chip only provides tuples of scamp and placable processor ids

processors -> all_processor_ids
user_processors -> placable_processors_ids
monitor_processors -> scamp_processors_ids
get_first_none_monitor_processor -> placable_processors_ids[0]

Chip is now an X,Y tuple

The Chip class now extends tuple(int, int)
The equals and hash are handled by tuple(int,int)

This allows

• (x,y) = chip
• (x,y) and Chip objects to be used interchangeably as dict keys
• A Chip object to be used anywhere and (x,y) is expected

This means:

• Chip iter is no longer a tuple of it, processor
• Chip[a] is no longer a processor
• len(Chip) is no longer the number of processors
• a in Chip is no longer a check for processor in chip
  The above now have meanings based on tuple(int,int) but there use is not recommended

Inlcudes:
SpiNNakerManchester/SpiNNMan#394
SpiNNakerManchester/PACMAN#548
SpiNNakerManchester/SpiNNFrontEndCommon#1165
SpiNNakerManchester/sPyNNaker#1439
SpiNNakerManchester/MarkovChainMonteCarlo#64

tested by:
SpiNNakerManchester/IntegrationTests#259