[Feature Request] Allow resetting xMinimumEverFreeBytesRemaining

[TomasGalbickaNXP]

Is your feature request related to a problem? Please describe.
An application running on FreeRTOS may want to get heap statistics during a particular period of time.
Therefore exposing the ability to reset the xMinimumEverFreeBytesRemaining value could be required.
For example, such use case could be required in a application that support FreeRTOS as OS and the software diagnostic cluster "reset watermarks" command.

Describe the solution you'd like
Add new heap API function xPortResetHeapMinimumEverFreeHeapSize() to heap_4.c.
It will reset xMinimumEverFreeBytesRemaining as xMinimumEverFreeBytesRemaining = xFreeBytesRemaining;.

Describe alternatives you've considered
No alternatives found, only way to reset this variable is from inside of the compilation unit.

How many devices will this feature impact?
None, It is new API heap function.

What are your project timelines?
N/A

Additional context
N/A

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[TomasGalbickaNXP]

PR implementing this feature: #1189