Setup API, actions, and reducers to get Triggers resources

[ncskier]

This work is under epic #509

Setup the API, actions, and reducers in the Dashboard to retrieve Triggers resources (TriggerTemplate, TriggerBinding, and EventListener) from the proxy API. Read the following specifications for more info about the API, actions, and reducers.

API

Add the following functions to src/api/index.js:

• getTriggerTemplates()
• getTriggerTemplate()
• getTriggerBindings()
• getTriggerBinding()
• getEventListeners()
• getEventListener()

Add tests in src/api/index.test.js

Actions

Create the following files with actions for FETCH_REQUEST, FETCH_SUCCESS, and FETCH_FAILURE:

• src/actions/triggerTemplates.js
• src/actions/triggerBindings.js
• src/actions/eventListeners.js

Include tests in:

• src/actions/triggerTemplates.test.js
• src/actions/triggerBindings.test.js
• src/actions/eventListeners.test.js

Reducers

Create the following files to define the state & reducers for each Triggers resource:

• src/reducers/triggerTemplates.js
• src/reducers/triggerBindings.js
• src/reducers/eventListeners.js

Include tests in:

• src/reducers/triggerTemplates.test.js
• src/reducers/triggerBindings.test.js
• src/reducers/eventListeners.test.js

Additional Info

• Tekton Triggers README: https://github.com/tektoncd/triggers

[a-roberts]

PR #686

[a-roberts]

Merged so closing, floodgates open