Allow additional rain-like weathers to water crops

The following weathers can now water crops:
- Bubble Rain (makes sense: water, strong rain)
- Misty Rain (makes sense: water, visible rain)
- Blood Rain (Blood is usable in Trays)
- Bog Rain (mostly water. Mixed in Algae doesn't harm crops)

Healing Rain was considered, but wasn't included, because it spawns
too much liquid, and any non-covered crops would be uprooted anyway.

Rains like Bio Rain (Bio-Ooze) weren't included,
because their liquids are potentially harmful to the crops.

weather/bog/bograin.weather

@@ -67,6 +67,17 @@
       "spawnAboveRegion" : 30,
       "spawnHorizontalPad" : 30,
       "windAffectAmount" : 1.0
+    },
+    {
+      "projectile" : "lightwater",
+      "parameters" : {
+        "power" : 0
+      },
+      "velocity" : [0, -100],
+      "ratePerX" : 0.1,
+      "spawnAboveRegion" : 30,
+      "spawnHorizontalPad" : 10,
+      "windAffectAmount" : 1
     }
   ],
 

weather/rain/bloodrain.weather

@@ -67,6 +67,17 @@
       "spawnAboveRegion" : 30,
       "spawnHorizontalPad" : 30,
       "windAffectAmount" : 1.0
+    },
+    {
+      "projectile" : "lightwater",
+      "parameters" : {
+        "power" : 0
+      },
+      "velocity" : [0, -100],
+      "ratePerX" : 0.1,
+      "spawnAboveRegion" : 30,
+      "spawnHorizontalPad" : 10,
+      "windAffectAmount" : 1
     }
   ],
 

weather/rain/fububblerain.weather

@@ -30,6 +30,17 @@
       "spawnAboveRegion" : 30,
       "spawnHorizontalPad" : 30,
       "windAffectAmount" : 0.0
+    },
+    {
+      "projectile" : "lightwater",
+      "parameters" : {
+        "power" : 0
+      },
+      "velocity" : [0, -100],
+      "ratePerX" : 0.1,
+      "spawnAboveRegion" : 30,
+      "spawnHorizontalPad" : 10,
+      "windAffectAmount" : 1
     }
   ],
 

weather/rain/mistyrain.weather

@@ -72,6 +72,17 @@
       "spawnAboveRegion" : 30,
       "spawnHorizontalPad" : 30,
       "windAffectAmount" : 1.0
+    },
+    {
+      "projectile" : "lightwater",
+      "parameters" : {
+        "power" : 0
+      },
+      "velocity" : [0, -100],
+      "ratePerX" : 0.1,
+      "spawnAboveRegion" : 30,
+      "spawnHorizontalPad" : 10,
+      "windAffectAmount" : 1
     }
   ],