Add RPC methods for getting AMC hostname and OH FPGA DNA

Description

This MR aims at the implementation of RPC methods to retrieve the OH FPGA DNA and the AMC hostname.

Related Issue

Closes #179 (closed)

How Has This Been Tested?

On the coffin it produces:

AMC hostName is  eagle53
FPGA IDs0 36102790414733712
FPGA IDs1 36102790414734144

Types of changes

• 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.