Allow MANUAL and RATE_PLAN rate sources

src/main/kotlin/com/android/trisolarisserver/controller/BookingFlow.kt

@@ -539,7 +539,7 @@ class BookingFlow(
     private fun parseRateSource(value: String?): RateSource? {
         if (value.isNullOrBlank()) return null
         return try {
-            RateSource.valueOf(value.trim())
+            RateSource.valueOf(value.trim().uppercase())
         } catch (_: IllegalArgumentException) {
             throw ResponseStatusException(HttpStatus.BAD_REQUEST, "Unknown rate source")
         }

src/main/kotlin/com/android/trisolarisserver/controller/RoomStays.kt

@@ -112,7 +112,7 @@ class RoomStays(
 
     private fun parseRateSource(value: String): RateSource {
         return try {
-            RateSource.valueOf(value.trim())
+            RateSource.valueOf(value.trim().uppercase())
         } catch (_: IllegalArgumentException) {
             throw ResponseStatusException(HttpStatus.BAD_REQUEST, "Unknown rate source")
         }

src/main/kotlin/com/android/trisolarisserver/models/room/RateSource.kt

@@ -1,7 +1,9 @@
 package com.android.trisolarisserver.models.room
 
 enum class RateSource {
+    MANUAL,
     PRESET,
+    RATE_PLAN,
     NEGOTIATED,
     OTA
 }