feat (RateModsAffectFGChanges): add a PREFSMAN RateModsAffectFGChanges

src/PrefsManager.cpp

@@ -190,6 +190,7 @@ PrefsManager::PrefsManager() :
 
 	m_fLifeDifficultyScale		( "LifeDifficultyScale",	1.0f ),
 
+	m_bRateModsAffectTweens		( "RateModsAffectFGChanges",	false ),
 
 	m_iRegenComboAfterMiss		( "RegenComboAfterMiss",	5 ),
 	m_iMaxRegenComboAfterMiss	( "MaxRegenComboAfterMiss",	5 ), // this was 10 by default in SM3.95 -dguzek

src/PrefsManager.h

@@ -182,6 +182,12 @@ public:
 
 	Preference<float>	m_fLifeDifficultyScale;
 
+	/**
+	 * Whether ratemod should affect playback speeds of FGChanges or not.
+	 * Originally introduced in NotITG.
+	 */
+	Preference<bool>	m_bRateModsAffectTweens;
+
 	// Whoever added these: Please add a comment saying what they do. -Chris
 	Preference<int>		m_iRegenComboAfterMiss; // combo that must be met after a Miss to regen life
 	Preference<int>		m_iMaxRegenComboAfterMiss; // caps RegenComboAfterMiss if multiple Misses occur in rapid succession