Duplication in chain registration commands

[sitetester]

Description

#9043
In this PR, duplication of registration commands was addressed by moving common code to parent class, but since it involved an out of scope change of relevant task, we can address it here.

What to do ?
Take relevant duplication of code (AND test cases) from above PR & either address it in the same PR (by re-opening it) or create another one.

Motivation

• There were duplication for whole blocks like verifyValidators
• Same set of tests were written for sidechain & mainchain
• Take a look at base class methods how duplication for other parts is handled

Additional Information

• framework/src/modules/interoperability/base_interoperability_register_chain_command.ts
• framework/src/modules/interoperability/mainchain/commands/register_sidechain.ts
• framework/src/modules/interoperability/sidechain/commands/register_mainchain.ts

[sitetester]

@gkoumout FYI

[shuse2]

Closing this issue for no activity