Fallback mechanism for oracle priority

[Braqzen]

Changes

• Rename MockOracle to Oracle
• Introduce 2 mock oracle interfaces that mostly align with what this integration will use
  • Mocked pyth, with some testing setup too
  • Mocked redstone, with some testing setup too
• Updated existing tests to pass while using the new oracle
• Best effort update to deployment and other areas that may have touched the oracle but it's incompatible with beta-5 version (12 breaking versions ahead) so it's untested
• Code uses forc 61.2
• Oracle tests
• Mocked oracles aren't tested themselves since they don't need to be, shouldn't be and the oracle itself is tested
• Any code added has followed the codebase pattern rather than rewriting the structure

Closes #117

[diyahir]

Mostly looks good, there are some file names that are outdated still using mock in front of the oracle

and then there's the issue with the assumed oracle precision which needs to be accounted for in the actual oracle implementation

[diyahir]

Code is inverted, all tests are wrongly formed