feat(tracker): add a preset explorer with search and filters

Closes #91

tracker/presets/BA/Punch_bass.yml

@@ -0,0 +1,50 @@
+numvoices: 1
+units:
+    - id: 216
+      parameters: {}
+      comment: Main oscillators
+    - type: oscillator
+      id: 3
+      parameters: {color: 64, detune: 64, gain: 64, lfo: 0, phase: 0, shape: 64, stereo: 0, transpose: 52, type: 2}
+    - type: oscillator
+      id: 4
+      parameters: {color: 0, detune: 64, gain: 64, lfo: 0, phase: 0, shape: 64, stereo: 0, transpose: 64, type: 1}
+    - type: addp
+      id: 5
+      parameters: {stereo: 0}
+    - id: 217
+      parameters: {}
+      comment: Main envelope
+    - type: envelope
+      id: 1
+      parameters: {attack: 0, decay: 64, gain: 53, release: 76, stereo: 0, sustain: 64}
+    - type: send
+      id: 2
+      parameters: {amount: 112, port: 4, sendpop: 0, target: 1}
+    - type: mulp
+      id: 12
+      parameters: {stereo: 0}
+    - id: 218
+      parameters: {}
+      comment: Effects & output
+    - type: envelope
+      id: 6
+      parameters: {attack: 0, decay: 70, gain: 128, release: 70, stereo: 0, sustain: 18}
+    - type: send
+      id: 214
+      parameters: {amount: 96, port: 0, sendpop: 0, target: 10}
+    - type: send
+      id: 215
+      parameters: {amount: 96, port: 0, sendpop: 1, target: 11}
+    - type: filter
+      id: 10
+      parameters: {bandpass: 0, frequency: 39, highpass: 0, lowpass: 1, resonance: 74, stereo: 0}
+    - type: filter
+      id: 11
+      parameters: {bandpass: 0, frequency: 11, highpass: 0, lowpass: 1, resonance: 128, stereo: 0}
+    - type: pan
+      id: 14
+      parameters: {panning: 64, stereo: 0}
+    - type: outaux
+      id: 15
+      parameters: {auxgain: 5, outgain: 24, stereo: 1}