DEVOPS-3067 fix edit and lint issues

[kunalp-gohire]

Fixed below issues:

• Lint: Detect wrong/duplicate summonplatform spec fields
• Lint: Remove old SummonPlatform object support
• Edit: Ignore error for objects which are not registered in scheme
• Lint: Throw error if SummonPlatform yaml does not contain 1 or 3 objects (1 for namespace, 3 for namespace, SummonPlatform and EncryptedSecret)
• Edit: Fix KeyId cannot be blank issue even if Data section has no key/value pairs to encrypt
• Edit: Get KeyId while decrypting values, and use same for encrypting values
• Edit: If there are multiple keyIds used in encryptedsecret, then select most used key to encrypt all values