Replace Roaming Pokémon encounter method

Roaming Pokémon can be encountered exclusively on grass or water in different situations in different games and at different encounter rates, which is something that wasn't reflected in the previous encounter method (which used to be only one).

+ Added Roaming grass encounter method
+ Added Roaming water encounter method
+ Moved Crystal, Firered, Leafgreen, Ruby, Sapphire and Emerald roaming Pokémon to the new encounter methods

data/v2/csv/encounter_method_prose.csv

@@ -42,4 +42,6 @@ encounter_method_id,local_language_id,name
 24,9,Headbutting a high encounter rate tree
 25,9,Using the Squirt Bottle on a Sudowoodo
 26,9,Using the Wailmer Pail on a Sudowoodo
-27,9,Surfing on seaweed
+27,9,Diving on seaweed
+28,9,On any overworld patch of grass
+29,9,On any overworld water tile

data/v2/csv/encounter_methods.csv

@@ -26,3 +26,5 @@ id,identifier,order
 25,squirt-bottle,25
 26,wailmer-pail,26
 27,seaweed,27
+28,roaming-grass,28
+29,roaming-water,29

data/v2/csv/encounter_slots.csv

@@ -703,3 +703,15 @@ id,version_group_id,encounter_method_id,slot,rarity
 702,10,5,10,10
 703,10,5,11,0
 704,10,5,12,0
+705,3,28,1,10
+706,4,28,1,10
+707,5,28,1,25
+708,5,29,1,25
+709,6,28,1,25
+710,6,29,1,25
+711,7,28,1,25
+712,8,28,1,25
+713,8,29,1,25
+714,9,28,1,25
+715,9,29,1,25
+716,10,28,1,25

data/v2/csv/encounters.csv

@@ -54404,30 +54404,30 @@ id,version_id,location_area_id,encounter_slot_id,pokemon_id,min_level,max_level
 58114,16,262,570,144,50,50
 58115,15,304,570,145,50,50
 58116,16,304,570,145,50,50
-58117,4,795,563,243,40,40
-58118,5,795,563,243,40,40
-58119,6,795,564,243,40,40
-58120,4,795,563,244,40,40
-58121,5,795,563,244,40,40
-58122,6,795,564,244,40,40
-58123,4,795,563,245,40,40
-58124,5,795,563,245,40,40
-58125,10,794,567,243,50,50
-58126,11,794,567,243,50,50
-58127,10,794,567,244,50,50
-58128,11,794,567,244,50,50
-58129,10,794,567,245,50,50
-58130,11,794,567,245,50,50
-58131,15,795,570,243,40,40
-58132,16,795,570,243,40,40
-58133,15,795,570,244,40,40
-58134,16,795,570,244,40,40
-58135,15,795,570,380,35,35
-58136,16,795,570,381,35,35
-58137,8,796,565,380,40,40
-58138,9,796,566,380,40,40
-58139,7,796,565,381,40,40
-58140,9,796,566,381,40,40
+58117,4,795,705,243,40,40
+58118,5,795,705,243,40,40
+58119,6,795,706,243,40,40
+58120,4,795,705,244,40,40
+58121,5,795,705,244,40,40
+58122,6,795,706,244,40,40
+58123,4,795,705,245,40,40
+58124,5,795,705,245,40,40
+58125,10,794,711,243,50,50
+58126,11,794,711,243,50,50
+58127,10,794,711,244,50,50
+58128,11,794,711,244,50,50
+58129,10,794,711,245,50,50
+58130,11,794,711,245,50,50
+58131,15,795,716,243,40,40
+58132,16,795,716,243,40,40
+58133,15,795,716,244,40,40
+58134,16,795,716,244,40,40
+58135,15,795,716,380,35,35
+58136,16,795,716,381,35,35
+58137,8,796,708,380,40,40
+58138,9,796,709,380,40,40
+58139,7,796,708,381,40,40
+58140,9,796,709,381,40,40
 58141,4,287,587,10,10,10
 58142,4,287,588,10,10,10
 58143,4,287,589,11,10,10
@@ -58498,3 +58498,7 @@ id,version_id,location_area_id,encounter_slot_id,pokemon_id,min_level,max_level
 62208,11,825,248,74,15,30
 62209,11,825,249,75,25,40
 62210,11,825,250,75,30,40
+62211,8,796,707,380,40,40
+62212,9,796,710,380,40,40
+62213,7,796,707,381,40,40
+62214,9,796,710,381,40,40