getModifier = (type, modName = "base") => (
			(landingModifiers[modName] || [])[type] || 1
		)
Calculate landing craft pre-cap/post-cap bonus depending on installation type.
@param installationType - kc3-unique installation types
@param isNight - is something special for night battle
@return {number} multiplier of landing craft
@see estimateInstallationEnemyType
@see http://kancolle.wikia.com/wiki/Partials/Anti-Installation_Weapons
@see https://wikiwiki.jp/kancolle/%E5%AF%BE%E5%9C%B0%E6%94%BB%E6%92%83
@see https://bbs.nga.cn/read.php?tid=33769345