feat(sointu, vm): implement pure-Go interpreter for bytecode

The old "native" compiler bridged version is now started with cmd/sointu-nativetrack,
while the new pure-Go bytecode implemented bytecode interpreter is started with
cmd/sointu-track

Thus, you do not need any of the CMake / cgo stuff to run cmd/sointu-track

vm/opcodes.go

@@ -0,0 +1,36 @@
+// Code generated by go generate; DO NOT EDIT.
+package vm
+
+const (
+	opAdd        = 1
+	opAddp       = 2
+	opAux        = 3
+	opClip       = 4
+	opCompressor = 5
+	opCrush      = 6
+	opDelay      = 7
+	opDistort    = 8
+	opEnvelope   = 9
+	opFilter     = 10
+	opGain       = 11
+	opHold       = 12
+	opIn         = 13
+	opInvgain    = 14
+	opLoadnote   = 15
+	opLoadval    = 16
+	opMul        = 17
+	opMulp       = 18
+	opNoise      = 19
+	opOscillator = 20
+	opOut        = 21
+	opOutaux     = 22
+	opPan        = 23
+	opPop        = 24
+	opPush       = 25
+	opReceive    = 26
+	opSend       = 27
+	opSpeed      = 28
+	opXch        = 29
+)
+
+var transformCounts = [...]int{0, 0, 1, 0, 5, 1, 4, 1, 5, 2, 1, 1, 0, 1, 0, 1, 0, 0, 2, 6, 1, 2, 1, 0, 0, 0, 1, 0, 0}