fix openziti/ziti#3352 adds api session ressumption to edge_apis

[andrewpmartinez]

fix openziti/ziti#3352 adds api session ressumption to edge_apis

• adds method type, ApiSession interface JSON wrapper
• adds string alias type AuthMethod
• adds AuthMethodEmpty as a sentinal type
• adds ApiSessionJsonWrapper to allow direct (un)marshalling of ApiSession via interface
• adds the ability to provide custom http client and transports
• adds an inline OAuth2/OIDC rp token authentication
• update redirect URI handling, ensure default uses ported value