Removing Manifest Path property, replacing with []byte content

[manasachi]

Description

Replacing ManifestFile Path property with yaml content as []byte. There is no need to write rendered manifests to a temporary directory now. Manifests are rendered and written in memory for validation to handle later.

Fixes # (issue)
Feature # (details)

Type of change

Please delete options that are not relevant.

• 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
• Refactor

How Has This Been Tested?

Unit tests were updated to ensure validation is not dependent on writing rendered files to a temp dir. All files are written/returned in memory

• Test A
• Test B

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