feature: Added configurable token endpoint auth method selection#1496

RobotechUSA wants to merge 2 commits intomodelcontextprotocol:mainmodelcontextprotocol/csharp-sdk:mainfrom

toolsgroup:feature/oauth-token-endpoint-auth-selectortoolsgroup/modelcontextprotocol-csharp-sdk:feature/oauth-token-endpoint-auth-selectorCopy head branch name to clipboard