getPlayable does not work correctly with all spell reduction abilities (e.g. Mystical Dispute) or with targeting conditions for the cost reduction

I was unable to cast a Mystical Dispute on my opponent's Mystical Dispute targeting my blue spell with one mana open for it. My opponent was at 3 mana and paid 1 to cast his.

Check and fix:
* [x] AbilitiesCostReductionControllerEffect.java
* [x] AffinityEffect.java
* [x] BantPlane.java
* [x] CommanderCostModification.java
* [x] ConditionalCostModificationEffect.java
* [x] CostModificationSourceEffect.java
* [x] EscalateAbility.java
* [x] FeedingGroundsPlane.java
* [ ] !!! OfferingAbility.java
* [x] SourceCostReductionForEachCardInGraveyardEffect.java (removed)
* [x] SpellCostReductionSourceEffect.java
* [x] SpellCostReductionForEachSourceEffect
* [x] SpellCostReductionSourceForOpponentsEffect.java (removed)
* [x] SpellsCostIncreasementAllEffect.java (removed)
* [x] SpellsCostIncreasingAllEffect.java
* [x] DampingSphereIncreasementAllEffect
* [x] SpellsCostIncreasementControllerEffect.java (removed)
* [x] SpellsCostReductionAllEffect.java
* [x] SpellsCostReductionAllOfChosenSubtypeEffect
* [x] SpellsCostReductionAllOfChosenCardTypeEffect
* [x] SpellsCostReductionControllerEffect.java
* [x] CentaurOmenreaderSpellsCostReductionEffect
* [x] StriveAbility.java
* [x] TurriIslandPlane.java
* [x] SpellsCostModificationThatTargetSourceEffect.java

Use checkplayable state:
* [ ] search by `public void adjustCosts(`

Refactor to standard method, search by `cast that target` ([fix example](https://github.com/magefree/mage/commit/09bc2575d8038d7b8dfcf40de5a447bd0ce76817)):
* [x] AccursedWitch.java
* [ ] AncientStoneIdol.java
* [ ] AngelOfJubilation.java
* [ ] AnimarSoulOfElements.java
* [ ] ArcaneMelee.java
* [ ] AuraOfSilence.java
* [ ] AvatarOfFury.java
* [ ] AvatarOfHope.java
* [ ] xxx BattlefieldThaumaturge.java
* [ ] BiomancersFamiliar.java
* [ ] BlasphemousAct.java
* [ ] BonePicker.java
* [ ] BorealElemental.java
* [ ] BrineGiant.java
* [ ] BrutalSuppression.java
* [ ] CallapheBelovedOfTheSea.java
* [ ] CatalystStone.java
* [ ] ChandrasIncinerator.java
* [ ] CloudKey.java
* [ ] CouncilOfTheAbsolute.java
* [ ] DefenseGrid.java
* [ ] DovinHandOfControl.java
* [ ] Draco.java
* [ ] Drought.java
* [ ] EchoBaseCommando.java
* [ ] EidolonOfObstruction.java
* [ ] ElderwoodScion.java
* [ ] ElspethConquersDeath.java
* [ ] EmbalmersTools.java
* [ ] Embercleave.java
* [ ] EmrakulThePromisedEnd.java
* [ ] EmryLurkerOfTheLoch.java
* [ ] FerventChampion.java
* [ ] Fluctuator.java
* [ ] GateColossus.java
* [ ] GaviNestWarden.java
* [ ] GearseekerSerpent.java
* [ ] GhaltaPrimalHunger.java
* [ ] Gloom.java
* [ ] Glowrider.java
* [ ] GodPharaohsStatue.java
* [ ] GrandArbiterAugustinIV.java
* [ ] HardenedBerserker.java
* [ ] Heartstone.java
* [ ] HeraldOfWar.java
* [ ] HollowOne.java
* [ ] HumOfTheRadix.java
* [ ] IcefallRegent.java
* [ ] InfectiousCurse.java
* [ ] JubilantSkybonder.java
* [ ] KaerveksTorch.java
* [ ] KaradorGhostChieftain.java
* [x] KasminaEnigmaticMentor.java
* [x] KopalaWardenOfWaves.java
* [ ] LiciaSanguineTribune.java
* [ ] LocketOfYesterdays.java
* [ ] LodestoneGolem.java
* [ ] LoreseekersStone.java
* [ ] MemoryCrystal.java
* [ ] MetalworkColossus.java
* [ ] MizzixOfTheIzmagnus.java
* [ ] MobilizedDistrict.java
* [x] MonasterySiege.java
* [ ] MythUnbound.java
* [ ] NemesisOfMortals.java
* [ ] NewPerspectives.java
* [ ] OppressiveRays.java
* [ ] PowerArtifact.java
* [ ] PrimevalProtector.java
* [ ] Pteramander.java
* [ ] PursuedWhale.java
* [ ] RakdosLordOfRiots.java
* [ ] RisenExecutioner.java
* [ ] SaheeliTheGifted.java
* [ ] SealOfTheGuildpact.java
* [ ] SemblanceAnvil.java
* [x] SenatorLottDod.java
* [ ] SpellwildOuphe.java
* [ ] SphinxOfNewPrahv.java
* [ ] StoneIdolTrap.java
* [ ] Stratadon.java
* [ ] SuppressionField.java
* [ ] SyrElenoraTheDiscerning.java
* [x] TerrorOfThePeaks.java
* [ ] ThaliaGuardianOfThraben.java
* [ ] TheCauldronOfEternity.java
* [ ] TheCircleOfLoyalty.java
* [ ] TheGreatHenge.java
* [ ] TitheTaker.java
* [x] TorgaarFamineIncarnate.java
* [ ] TrainingGrounds.java
* [ ] Trinisphere.java
* [x] ValiantChangeling.java
* [ ] VolcanicSalvo.java
* [ ] VrynWingmare.java
* [x] Warbringer.java
* [ ] ZirdaTheDawnwaker.java