feat: add flamingo plugin (#916)

Co-authored-by: James Hegedus <jthegedus@hey.com>

README.md

@@ -244,6 +244,7 @@ The `asdf` core provides a [security policy](https://github.com/asdf-vm/asdf/sec
 | fillin                        | [ouest/asdf-fillin](https://github.com/ouest/asdf-fillin)                                                       | [![Build Status](https://github.com/ouest/asdf-fillin/workflows/Build/badge.svg?branch=main)](https://github.com/ouest/asdf-fillin/actions)                                                                                       |
 | firebase                      | [jthegedus/asdf-firebase](https://github.com/jthegedus/asdf-firebase)                                           | [![Build](https://github.com/jthegedus/asdf-firebase/workflows/Build/badge.svg?branch=master)](https://github.com/jthegedus/asdf-firebase/actions)                                                                                |
 | fission                       | [virtualstaticvoid/asdf-fission](https://github.com/virtualstaticvoid/asdf-fission)                             | [![Build Status](https://github.com/virtualstaticvoid/asdf-fission/actions/workflows/workflow.yml/badge.svg?branch=main)](https://github.com/virtualstaticvoid/asdf-fission/actions/workflows/workflow.yml)                       |
+| Flamingo                      | [log2/asdf-flamingo](https://github.com/log2/asdf-flamingo)                                                     | [![Build Status](https://github.com/log2/asdf-flamingo/actions/workflows/build.yml/badge.svg?branch=main)](https://github.com/log2/asdf-flamingo/actions/workflows/build.yml)                                                     |
 | flarectl                      | [ORCID/asdf-flarectl](https://github.com/ORCID/asdf-flarectl)                                                   | [![Build](https://github.com/ORCID/asdf-flarectl/actions/workflows/build.yml/badge.svg)](https://github.com/ORCID/asdf-flarectl/actions/workflows/build.yml)                                                                      |
 | flatc                         | [TheOpenDictionary/asdf-flatc](https://github.com/TheOpenDictionary/asdf-flatc)                                 | [![Build Status](https://github.com/TheOpenDictionary/asdf-flatc/actions/workflows/build.yml/badge.svg)](https://github.com/TheOpenDictionary/asdf-flatc/actions/workflows/build.yml)                                             |
 | Flutter                       | [oae/asdf-flutter](https://github.com/oae/asdf-flutter)                                                         | [![Build Status](https://travis-ci.com/oae/asdf-flutter.svg?branch=master)](https://travis-ci.com/oae/asdf-flutter)                                                                                                               |

plugins/flamingo

@@ -0,0 +1 @@
+repository = https://github.com/log2/asdf-flamingo.git