Add bindings for GO

[shotonoff]

Motivation

Since there is no go-bindings for this library, we (Dash) decided to add them here.

Overview

This PR is the implementation of GO bindings for the chia-bls library.

What was done

There was added bindings for all basic components:

• Schemes (Basic, Aug, Pop)
• PrivateKey
• G1 and G2 elements

[hoffmang9]

Happy to get this in once it's passing. Anything we can do to help?

[mariano54]

We should probably merge this is before we add any new features

[mariano54]

@xdustinface do you think we can merge this?

[github-actions]

'This PR has been flagged as stale due to no activity for over 60
days. It will not be automatically closed, but it has been given
a stale-pr label and should be manually reviewed.'

[justinengland]

@xdustinface want to double check you opinion here, can this be merged?

[xdustinface]

Seems to be good to be merged yes, if we can keep it maintained and up to date? Even though i worked with this bindings before and im somewhat familiar with them i want to point out thats been a while and im not really into go, it was my only insight into it.

Also i guess, its been a too long time since this was opened, sorry for not replying here earlier.. :/ But we should probably have the go version and dependencies adjusted here, maybe. @shotonoff Any thoughts on this?

[xdustinface]

Reopening to rerun CI after some recent changes here.

[coveralls-official]

Pull Request Test Coverage Report for Build 5290440323

• 0 of 0 changed or added relevant lines in 0 files are covered.
• No unchanged relevant lines lost coverage.
• Overall coverage remained the same at 94.151%

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Totals
Change from base Build 5283898189:	0.0%
Covered Lines:	1642
Relevant Lines:	1744

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💛 - Coveralls

[github-actions]

'This PR has been flagged as stale due to no activity for over 60
days. It will not be automatically closed, but it has been given
a stale-pr label and should be manually reviewed.'