implement token rotation; fix other stuff

config/example-config.yaml

docker/example-docker-config.yaml

go.mod

go.sum

internal/config/config.go

internal/db/dbmigrate/migrate.go

internal/db/dbmigrate/v0.3.0.go

internal/db/dbrepo/authcodeinforepo/authcodeInfo.go

internal/db/dbrepo/mytokenrepo/mytokenrepohelper/helpers.go

internal/db/dbrepo/refreshtokenrepo/refreshtoken.go

internal/endpoints/revocation/revocationEndpoint.go

internal/endpoints/token/access/accessTokenEndpoint.go

internal/endpoints/token/access/pkg/accessTokenRequest.go

internal/endpoints/token/access/pkg/accessTokenResponse.go

internal/endpoints/token/mytoken/pkg/myTokenRequest.go

internal/endpoints/token/mytoken/pkg/myTokenResponse.go

internal/endpoints/token/mytoken/pkg/oidcFlowRequest.go

internal/endpoints/token/mytoken/pkg/pollingCodeRequest.go

internal/endpoints/token/mytoken/pkg/transferCodeRequest.go

internal/endpoints/token/mytoken/polling/pollingEndpoint.go