docstrings added to functions, types and methods

CHANGELOG first update

pre-commit updated to look in root of repo.

version retraction added to go.mod

README updated to reflect changes

util_test.go

@@ -0,0 +1,41 @@
+package voicemeeter
+
+import (
+	"testing"
+
+	"github.com/stretchr/testify/assert"
+)
+
+func TestAllTrue(t *testing.T) {
+	//t.Skip("skipping test")
+	s := []bool{true, true, true, true, true, true}
+	t.Run("Should return true", func(t *testing.T) {
+		assert.True(t, allTrue(s, len(s)))
+	})
+	s = []bool{true, true, true, true, false, true}
+	t.Run("Should return false", func(t *testing.T) {
+		assert.False(t, allTrue(s, len(s)))
+	})
+}
+
+func TestUpdate(t *testing.T) {
+	//t.Skip("skipping test")
+	s1 := []float32{3.6, 8.7, 1.8, 18.2}
+	s2 := make([]float32, len(s1))
+	update(s2, s1, len(s1))
+	t.Run("Should return true", func(t *testing.T) {
+		assert.Equal(t, s1, s2)
+	})
+}
+
+func TestConvertLevel(t *testing.T) {
+	//t.Skip("skipping test")
+	res := convertLevel(0.02)
+	t.Run("Should be equal", func(t *testing.T) {
+		assert.Equal(t, float32(-34), res)
+	})
+	res = convertLevel(-0.02)
+	t.Run("Should be equal", func(t *testing.T) {
+		assert.Equal(t, float32(-200), res)
+	})
+}