Add spell data helper and organize screenshots

tests/fixtures/eql-spells/dbstr_us.txt

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+1^6^Launches a bolt of fire at your target.^0^
+2^6^Lets your target breathe underwater for a short time.^0^
+3^6^Launches a ball of fire at your target.^0^
+1^5^Fire^0^

tests/fixtures/eql-spells/spells_us.txt

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+1^Fire Bolt^0^alpha
+2^Water Breathing^0^beta
+3^Fireball^0^gamma

tests/fixtures/eql-spells/spells_us_str.txt

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+#SPELLINDEX^CASTERMETXT^CASTEROTHERTXT^CASTEDMETXT^CASTEDOTHERTXT^SPELLGONE^
+1^You cast Fire Bolt.^%1 casts Fire Bolt.^Fire burns you.^Fire burns %1.^The fire fades.^
+2^You breathe water.^%1 breathes water.^You can breathe water.^%1 can breathe water.^The water magic fades.^
+3^^^^^^