Natspec issues

[MathisGD]

Fixes https://github.com/cantinasec/review-morpho/issues/12

• MorphoChainlinkOracleV2.sol#L128: "Chainlink" should be replaced with "Chainlink-compliant"

Completely removed "chainlink"

• IMorphoChainlinkOracleV2.sol#L25: These feeds are "chainlink-interface-compatible" but they could be feeds that are not from Chainlink itself. Consider to better clarify it.

I simply removed chainlink, as it doesn't add a lot here.

• IMorphoChainlinkOracleV2Factory.sol#L28: the natspec comment should be re-written to use the "vault" term as plural

Actually there was a bigger problem, that I fixed. I also remove "feeds should be in the correct order" because usually these things are implied

• IMorphoChainlinkOracleV2Factory.sol#L43: This factory does not create MM vaults but a MorphoChainlinkOracle. Replace "MetaMorpho vault" with "Morpho Chainlink oracle"

removed

• MorphoChainlinkOracleV2Test.sol#L103 + MorphoChainlinkOracleV2Test.sol#L114: be consistent across all the tests (if there's not a specific reason to do otherwise). For the vast majority of instances you have used 1e18 but here and in testSDaiUsdcOracle you are using 10 ** 18

fixed