Duplicate error codes in meshkit library

[parthivsaikia]

Current Behavior

A number of meshkit errors have duplicate error codes. e.g.

Error Code	Variable Name	File Location
meshkit-11245	ErrAuthenticatingToRegistryCode	models/oci/error.go
	ErrUnknownFormatCode	models/converter/error.go
	ErrDecodeYamlCode	encoding/error.go
meshkit-11248	ErrTaggingPackageCode	models/oci/error.go
	ErrCompressToTarGZCode	utils/error.go
	ErrUnmarshalSyntaxCode	encoding/error.go

Expected Behavior

Every error should have a unique identifier code. The new errors should start from 11320.

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