Added sort by tier and filter to current tier

client/views/teambuilder/pokemon.jade

@@ -14,12 +14,17 @@ mixin printStat(statName, keyName)
 .meta-info.clearfix
   .left-side
     .species
+      label.filter-tier
+        input.filter-tier-box(type='checkbox')
+        | Filter to Current Tier
       select.sortSpecies
-        option=""
+        option="Sort"
         option="Sort by Dexnumber"
         option="Invert by Dexnumber"
         option="Sort Alphabetically"
         option="Invert Alphabetically"
+        option="Sort by Tier"
+        option="Invert by Tier"
       select.species_list
         option
         each species in speciesList