Add code generation capabilities

[DodinViorel]

Description

Add capability to generate golang code for each type defined in the appd

• fill in the object_types.json file with the types you want to generate

e.g

{
    "version": "1.0",
    "fullyQualifiedTypeName": [
        "fmm:namespace",
        "anzen:cloudConnection",
        "anzen:cloudConnectionState"
    ]
}

In this example we will generate code for these three object types
make generate

Type of Change

• Bug Fix
• New Feature
• Breaking Change
• Refactor
• Documentation
• Other (please describe)

Checklist

• I have read the contributing guidelines
• Existing issues have been referenced (where applicable)
• I have verified this change is not present in other open pull requests
• Functionality is documented
• All code style checks pass
• New code contribution is covered by automated tests
• All new and existing tests pass

[bogdanguranda]

Looks good, I found some small issues, and suggested an improvement for later.