Dplug v15 proposals

[p0nce]

• Make futureBinState default. All saves made without futureBinState should work with futureBinState (except if VST2 chunks weren't enabled). This will require much testing. This is breaking.
• Make futureMouseDrag the default. This is breaking.
• Forbid wrong usage of Vec!T (see #823)
• disallow Vec!T aligned on alignement > 1.
• deprecate equalLoudnessCurve, isOdd, isEven
• sinc should have one overload for float and double only.
• improve or rather deprecate inverseSqrt, intel-intrinsics shall be used instead