Add TIPSv2 Support

[guarin]

What has changed and why?

• adds support for TIPSv2
• does not yet solve issue of [0,1] normalization and 448x448 default resolution

How has it been tested?

• unit tests
• checkpoint loading was tested offline with a dummy script

Did you update CHANGELOG.md?

• Yes
• Not needed (internal change)

Did you update the documentation?

• Yes
• Not needed (internal change without effects for user)

[CLAassistant]

Thank you for your submission! We really appreciate it. Like many open source projects, we ask that you all sign our Contributor License Agreement before we can accept your contribution.
1 out of 2 committers have signed the CLA.

✅ liopeer
❌ guarin

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[liopeer]

@guarin do you want to sign the CLA? Otherwise I'll have to overwrite your commit signature.

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