feat(tracker/presets): new/modified presets, including reverb presets (#236)

Add new reverb presets in UTIL
Remove duplicate global mastering
Revisit some presets and add new ones

tracker/presets/KEYS/Pop_piano_st.yml

@@ -0,0 +1,42 @@
+name: Pop piano st
+numvoices: 4
+units:
+    - id: 1820
+      parameters: {}
+      comment: Oscillators
+    - type: oscillator
+      id: 1821
+      parameters: {color: 64, detune: 66, gain: 64, looplength: 1339, loopstart: 9176, phase: 75, samplestart: 982589, shape: 50, stereo: 1, transpose: 60, type: 4, unison: 2}
+    - type: oscillator
+      id: 1822
+      parameters: {color: 64, detune: 64, gain: 64, looplength: 1487, loopstart: 8309, phase: 0, samplestart: 972709, shape: 64, stereo: 1, transpose: 68, type: 4, unison: 1}
+    - type: addp
+      id: 1812
+      parameters: {stereo: 1}
+    - id: 1823
+      parameters: {}
+      comment: Envelope
+    - type: envelope
+      id: 1824
+      parameters: {attack: 12, decay: 80, gain: 64, release: 74, stereo: 1, sustain: 0}
+    - type: mulp
+      id: 1813
+      parameters: {stereo: 1}
+    - id: 1825
+      parameters: {}
+      comment: Pan & output
+    - type: filter
+      id: 1826
+      parameters: {bandpass: 0, frequency: 128, highpass: 0, lowpass: 1, resonance: 99, stereo: 1}
+    - type: compressor
+      id: 1827
+      parameters: {attack: 41, invgain: 33, ratio: 64, release: 78, stereo: 1, threshold: 37}
+    - type: mulp
+      id: 1828
+      parameters: {stereo: 1}
+    - type: pan
+      id: 1829
+      parameters: {panning: 64, stereo: 1}
+    - type: outaux
+      id: 1830
+      parameters: {auxgain: 4, outgain: 17, stereo: 1}