Work on ReadMemory command

[josesimoes]

Description

• Add ErrorCode field to Monitor_ReadMemory.Reply class.
• Update deserializer method accordingly.
• Add enum with error codes for access memory operations.
• Rework Engine.ReadMemory() methods to add operation error code.
• Rework Engine.ReadMemory() method to improve processing of reply.
• Update test app to verify command functionality.

Motivation and Context

• ReadMemory command wasn't working properly.
• Needed the command to be able to read BOOTLOADER and CLR regions to improve VS extension features.

How Has This Been Tested?

Screenshots

Types of changes

• Improvement (non-breaking change that improves a feature, code or algorithm)
• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to change)

Checklist:

• My code follows the code style of this project.
• My change requires a change to the documentation.
• I have updated the documentation accordingly.
• I have read the CONTRIBUTING document.
• I have added tests to cover my changes.
• All new and existing tests passed.

Signed-off-by: José Simões jose.simoes@eclo.solutions

[nfbot]

Hi @josesimoes,

I'm nanoFramework bot.
Thank you for your contribution!

A human will be reviewing it shortly. 😉