add func getModuleInfo and example

[mayopan]

There is already a useful function "getProtocolVersion".
But it shows just protocol version number.
So I made a new function getModuleInfo.
It pulls not only versions but also extension information as strings like below.
I made this before to the branch from the library ver 1.7.0, but it has unstable communication around sendCommand and ACK NACK.
But it's fixed in the latest version(later than 1.8.0).
Thanks sparkfun and communities.

Module Info :
Soft version: EXT CORE 3.01 (107900)
Hard version: 00080000
Extensions:
ROM BASE 3.01 (107888)
FWVER=SPG 3.01
PROTVER=18.00
MOD=NEO-M8N-0
FIS=0xEF4015 (100111)
GPS;GLO;GAL;BDS
SBAS;IMES;QZSS

[PaulZC]

Hi @mayopan ,
Thank you for submitting this PR.
Unfortunately we cannot merge it as it increases the amount of RAM required by the library. The library already requires a lot of RAM and if we allocate more then it will cause problems on platforms like the ATmega328P (which is still very popular).
The only way forward is if you re-write this as an example which uses a custom command. Please see the new Example 20 for details. You will need to add a warning in the code that it may require more RAM than the ATmega328P can provide.
Best wishes,
Paul

[PaulZC]

You can define your own MAX_PAYLOAD_SIZE by including (e.g.):
#define MAX_PAYLOAD_SIZE 384
before the
#include "SparkFun_Ublox_Arduino_Library.h"
Best wishes,
Paul

[mayopan]

Hi @PaulZC,
thank you for your quick reply.

Yes, I made some modification to the payload size on the LAST PR for the issue that is linked above, because it didn't work correctly without it.
But on this PR for the ver 1.8 library, the new function works correctly with no modification to the payload size.

I understand the memory limitation for the compatibility with the standard ATmega328 things, and I've not checked this PR with it but checked with ESP32 (that has plenty of memory).

So I'll check this with arduino nano (ATmega328P), and see the example 20.
I'll post the result later.

Best wishes,
mayopan