(#90) Bumped Cake.Core to 2.0.0

[nils-a]

Description

• Bumped the reference of Cake.Core to 2.0.0
• TFMs were corrected to reflect the requirements for Cake 2.0.0
  Also, the unused icon.png was removed.

Supersedes #122

Related Issue

fixes #90

Motivation and Context

#90

How Has This Been Tested?

local build

Types of changes

• 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 change)

Checklist:

• My code follows the code style of this project.
• My change requires a change to the documentation.
• I have updated the documentation accordingly.
• I have read the CONTRIBUTING document.
• I have added tests to cover my changes.
• All new and existing tests passed.