Add Fever API

README.md

locale/translations.go

locale/translations/fr_FR.json

model/icon.go

model/integration.go

server/core/json_response.go

server/core/request.go

server/core/response.go

server/fever/fever.go

server/middleware/fever.go

server/routes.go

server/static/bin.go

server/static/css.go

server/static/js.go

server/template/common.go

server/template/html/integrations.html

server/template/views.go

server/ui/controller/integrations.go

server/ui/form/integration.go

sql/schema_version_5.sql