DataCache and changes for game update

Recent game update changed pokememes view in pokedeks, so we need to
reflect it by updating parser.

Introducing DataCache - a silver bullet for eliminating lags linked to
database queries. Less queries, more in RAM, faster work. Needs testing
in production environment.

lib/datacache/datacacheinterface/datacacheinterface.go

@@ -0,0 +1,34 @@
+// i2_bot – Instinct PokememBro Bot
+// Copyright (c) 2018 Vladimir "fat0troll" Hodakov
+
+package datacacheinterface
+
+import (
+	"git.wtfteam.pro/fat0troll/i2_bot/lib/dbmapping"
+)
+
+// DataCacheInterface implements DataCache for importing via appcontext.
+type DataCacheInterface interface {
+	Init()
+
+	AddPlayer(player *dbmapping.Player) (int, error)
+	GetOrCreatePlayerByTelegramID(telegramID int) (*dbmapping.Player, error)
+	GetPlayerByID(playerID int) (*dbmapping.Player, error)
+	GetPlayerByTelegramID(telegramID int) (*dbmapping.Player, error)
+	UpdatePlayerFields(player *dbmapping.Player) (*dbmapping.Player, error)
+	UpdatePlayerTimestamp(playerID int) error
+
+	AddProfile(profile *dbmapping.Profile) (int, error)
+	GetPlayersWithCurrentProfiles() map[int]*dbmapping.PlayerProfile
+	GetProfileByID(profileID int) (*dbmapping.Profile, error)
+	GetProfileByPlayerID(playerID int) (*dbmapping.Profile, error)
+
+	AddPokememe(pokememeData map[string]string, pokememeLocations map[string]string, pokememeElements map[string]string) (int, error)
+	GetAllPokememes() map[int]*dbmapping.PokememeFull
+	GetPokememeByID(pokememeID int) (*dbmapping.PokememeFull, error)
+	GetPokememeByName(name string) (*dbmapping.PokememeFull, error)
+	DeletePokememeByID(pokememeID int) error
+
+	GetLeagueBySymbol(symbol string) (*dbmapping.League, error)
+	GetWeaponTypeByName(name string) (*dbmapping.Weapon, error)
+}