feat(stays-models): contact information for accommodation providers

[mfw78]

Problem

Need some method of conveying contact information for the accommodation provider

Solution

Add contact information to the storage protobuf. Need to determine schema for this

[xdaluca]

Property Information

message PR_Name { 

message PR_Email {

message PR_Telephone {
// country code

message PR_website {

also created the one for guests relating to #43

Guest information

message GU_FirstName { 

message GU_LastName {

message GU_AlternateName {
//option to use an alias 

message GU_Email {

message GU_Telephone {
// country code