Add nITG's various path shape & other modifiers - V2 (#1435)

* Implemented nITG's Square modifiers

Modifiers added:
Square
SquareOffset
SquarePeriod
SquareZ
SquareZOffset
SquareZPeriod

* Implemented nITG's BumpyX Modifiers

Also fixes up some tiny bits pertaining to the square modifiers.
Modifiers Added:
BumpyX
BumpyXPeriod
BumpyXOffset

* Implemented nITG's TornadoZ Modifiers

Modifiers Added:
TornadoZ
TornadoZPeriod
TornadoZOffset

Another commit is needed to update fallback's metrics

* Update fallback's metrics to accommodate TornadoX

* Implemented nITG's Parabola Modifiers

Modifiers Added:
ParabolaX
ParabolaY
ParabolaZ

* Implemented nITG's Sawtooth Modifiers

Modifiers Added:
Sawtooth
SawtoothPeriod
SawtoothZ
SawtoothZPeriod

* Implemented nITG's Zigzag Modifiers

Modifiers Added:
Zigzag
ZigzagPeriod
ZigzagOffset
ZigzagZ
ZigzagZPeriod
ZigzagZOffset

* Implemented nITG's ModTimer modifiers

Modifiers Added:
ModTimer (Lua method name is ModTimerSetting (takes enums. Ex: 'ModTimerType_Song'). Can be activated with mod strings 'modtimer(song/beat/game/default)' )
ModTimerOffset
ModTimerMult

* Remove Log use from ArrowEffects::GetTime()

* Accidentally removed a CPY(m_BatteryLives)

* Implemented nITG's DrunkZ modifiers

Modifiers added:
drunkz
drunkzspeed
drunkzoffset
drunkzperiod

Another commit is needed to update fallback's metrics

* Update fallback's metrics to accommodate DrunkZ

* Implemented nITG's BeatY & BeatZ Modifers

Modifiers Added:
beaty
beatyoffset
beatyperiod
beatymult	
beatz
beatzoffset
beatzperiod
beatzmult

Another commit is needed to update fallback's metrics

* Updated fallback's metrics to accommodate ...

the new Beat modifiers.

* Implemented nITG's Digital Modifiers

Modifers Added:
digital
digitalsteps
digitalperiod
digitaloffset
digitalz
digitalzsteps
digitalzperiod
digitalzoffset

* Removed duplicate zbuffer check.

* Updated Luadocs with the new modifiers

* Removed accidental duplicate Mini from Luadocs

* Split up long modifier lines.

Hopefully, this makes it a bit easier to read.

* Remove accidental commit to root of repo.

* Split up long modifier lines

Hopefully, this makes it easier to read.

* Redid Square functions to not use FastSin

This implementation is based off of 5.2's square_wave function from ModValue.

* Redid zigzag functions to not use FastSin

This implementation is based off of 5.2's triangle_wave function from ModValue.

* Moved square & zigzag calculation to RageMath.

New RageMath functions:
RageSquare
RageTriangle

* Made Square & Digital have the same period...

as Zigzag and Sawtooth.

* Deduplicate tornado calculations.

* Fixed typo in UpdateTornado, and moved UpdateTornado logic to ArrowEffects::Init because it doesn't depend on anything that changes every frame.  Tornado metrics are also loaded in ArrowEffects::Init.

* Deduplicated Beat mod update logic.

The logic is now placed into a function called UpdateBeat.
The m_fBeatFactor members are now a 1D array, similar to m_MaxTornado and m_MinTornado.

Themes/_fallback/metrics.ini

@@ -210,16 +210,33 @@ TipsyArrowMagnitude=0.4
 TipsyOffsetTimerFrequency=1.2
 TipsyOffsetColumnFrequency=2
 TipsyOffsetArrowMagnitude=0.4
-TornadoPositionScaleToLow=-1
-TornadoPositionScaleToHigh=1
-TornadoOffsetFrequency=6
-TornadoOffsetScaleFromLow=-1
-TornadoOffsetScaleFromHigh=1
+TornadoXPositionScaleToLow=-1
+TornadoXPositionScaleToHigh=1
+TornadoXOffsetFrequency=6
+TornadoXOffsetScaleFromLow=-1
+TornadoXOffsetScaleFromHigh=1
+TornadoYPositionScaleToLow=-1
+TornadoYPositionScaleToHigh=1
+TornadoYOffsetFrequency=6
+TornadoYOffsetScaleFromLow=-1
+TornadoYOffsetScaleFromHigh=1
+TornadoZPositionScaleToLow=-1
+TornadoZPositionScaleToHigh=1
+TornadoZOffsetFrequency=6
+TornadoZOffsetScaleFromLow=-1
+TornadoZOffsetScaleFromHigh=1
 DrunkColumnFrequency=0.2
 DrunkOffsetFrequency=10
 DrunkArrowMagnitude=0.5
+DrunkZColumnFrequency=0.2
+DrunkZOffsetFrequency=10
+DrunkZArrowMagnitude=0.5
 BeatOffsetHeight=15
 BeatPIHeight=2
+BeatYOffsetHeight=15
+BeatYPIHeight=2
+BeatZOffsetHeight=15
+BeatZPIHeight=2
 MiniPercentBase=0.5
 MiniPercentGate=1
 TinyPercentBase=0.5