Bug Fix| Signers not being set in neo-cli with Invoke Command

[cschuchardt88]

Description

Closes #3088

Basically signers are not being set in neo-cli when no sender or signers are specified. When command invoke is run. Set to use DefaultAccount of wallet.

Type of change

• 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 not work as expected)
• This change requires a documentation update

How Has This Been Tested?

Test Configuration:
On TestNet
neo-cli: neo> invoke 0x70b53ba105de41678d0ffe57d62aa4cfd6e4e2db test

You need contract that calls syscall GetScriptContainer.

Checklist:

• My code follows the style guidelines of this project
• I have performed a self-review of my code
• I have commented my code, particularly in hard-to-understand areas
• I have made corresponding changes to the documentation
• My changes generate no new warnings
• I have added tests that prove my fix is effective or that my feature works
• New and existing unit tests pass locally with my changes
• Any dependent changes have been merged and published in downstream modules

[cschuchardt88]

@vncoelho @superboyiii can you test?