Generalize Field Trip module for non-TriMet imiplementations

[landonreed]

These are all TriMet-specific. If we intend to deploy the Field Trip module for a non-TriMet customer, these should be loaded from config instead:

otp-react-redux/lib/util/call-taker.js

Lines 7 to 18 in 3db2cdb

	export const TICKET_TYPES = {
	own_tickets: 'Will use own tickets',
	hop_new: 'Will purchase new Hop Card',
	hop_reload: 'Will reload existing Hop Card'
	}
	const PAYMENT_PREFS = {
	request_call: 'Call requested at provided phone number',
	phone_cc: 'Will call in credit card info to TriMet',
	fax_cc: 'Will fax credit card info to TriMet',
	mail_check: 'Will mail check to TriMet'
	}

otp-react-redux/lib/util/call-taker.js

Lines 26 to 39 in 3db2cdb

	export const GROUP_FIELDS = [
	{inputProps: positiveIntInputProps, fieldName: 'numStudents', label: 'students 7 or older'},
	{inputProps: positiveIntInputProps, fieldName: 'numFreeStudents', label: 'students under 7'},
	{inputProps: positiveIntInputProps, fieldName: 'numChaperones', label: 'chaperones'}
	]
	export const PAYMENT_FIELDS = [
	{label: 'Payment preference', fieldName: 'paymentPreference', options: PAYMENT_PREFS},
	{label: 'Class Pass Hop Card #', fieldName: 'classpassId'},
	{label: 'Credit card type', fieldName: 'ccType'},
	{label: 'Name on credit card', fieldName: 'ccName'},
	{label: 'Credit card last 4 digits', fieldName: 'ccLastFour'},
	{label: 'Check/Money order number', fieldName: 'checkNumber'}
	]

Originally posted by @evansiroky in #230 (comment)