Generation 2 (GSC) encounters (#289)

Source: https://www.pokebip.com/page/jeuxvideo/dossier_shasse/encounter_slot

This covers the following encounter methods: Walking, Fishing (3 rods), Surf and Rock Smash

pokedex/data/csv/encounter_slots.csv

@@ -513,3 +513,49 @@ id,version_group_id,encounter_method_id,slot,rarity
 512,11,19,,100
 513,14,19,,100
 514,16,19,,100
+515,3,1,1,30
+516,3,1,2,30
+517,3,1,3,20
+518,3,1,4,10
+519,3,1,5,5
+520,3,1,6,4
+521,3,1,7,1
+522,3,2,1,70
+523,3,2,2,15
+524,3,2,3,15
+525,3,3,1,35
+526,3,3,2,35
+527,3,3,3,20
+528,3,3,4,10
+529,3,4,1,40
+530,3,4,2,30
+531,3,4,3,20
+532,3,4,4,10
+533,3,5,1,60
+534,3,5,2,30
+535,3,5,3,10
+536,3,6,1,90
+537,3,6,2,10
+538,4,1,1,30
+539,4,1,2,30
+540,4,1,3,20
+541,4,1,4,10
+542,4,1,5,5
+543,4,1,6,4
+544,4,1,7,1
+545,4,2,1,70
+546,4,2,2,15
+547,4,2,3,15
+548,4,3,1,35
+549,4,3,2,35
+550,4,3,3,20
+551,4,3,4,10
+552,4,4,1,40
+553,4,4,2,30
+554,4,4,3,20
+555,4,4,4,10
+556,4,5,1,60
+557,4,5,2,30
+558,4,5,3,10
+559,4,6,1,90
+560,4,6,2,10