Separate classes for groups of methods (#1)

* added resourcetype interface that's imported and reused

* added membergroupmembership; comments formatting typedoc output; updated types

* separate classes for groups of methods

* additional methods added, suggested changes made, typedoc documentation improved

lib/index.ts

@@ -1,6 +1,17 @@
+
 import D4H from './src/d4h'
 export default D4H
-
+export { Teams, Organisations } from './src/d4h'
+export { Qualifications } from './src/api/qualifications'
+export { Members } from './src/api/members'
+export { Incidents } from './src/api/incidents'
+export { Groups } from './src/api/groups'
+export { Animals } from './src/api/animals'
+export { CustomFields } from './src/api/custom_fields'
+export { Roles } from './src/api/roles'
+export { Accounts } from './src/api/accounts'
+export { Activities } from './src/api/activity'
+ 
 export * from './src/types/customField'
 export * from './src/d4h'
 export * from './src/types/group'