feat(licenses): update license and G9 Software name

[PierrickGT]

No description provided.

[linear]

GEN-806 Update License and Author Info

Contracts created by G9 Software Inc. should have MIT license and "G9 Software Inc." as the author / co-author

• Vault
• VaultFactory
• IVaultHooks
• LiquidationRouter
• LiquidationPair
• Ring Buffer Lib
• Ownable

[github-actions]

LCOV of commit 061cb4c during 100% Test Coverage #152

Summary coverage rate:
  lines......: 100.0% (237 of 237 lines)
  functions..: 100.0% (53 of 53 functions)
  branches...: no data found

Files changed coverage rate:
                                  |Lines       |Functions  |Branches    
  Filename                        |Rate     Num|Rate    Num|Rate     Num
  ======================================================================
  src/TwabController.sol          | 100%    115| 100%    33|    -      0
  src/libraries/ObservationLib.sol| 100%     15| 100%     1|    -      0
  src/libraries/TwabLib.sol       | 100%    107| 100%    19|    -      0