Add compressor plugin source with build files

Source/Compressor.h

@@ -0,0 +1,37 @@
+#pragma once
+
+#include <juce_audio_utils/juce_audio_utils.h>
+#include <juce_dsp/juce_dsp.h>
+
+namespace pascal
+{
+
+class GlueCompressor final
+{
+public:
+    void prepare (const juce::dsp::ProcessSpec& spec);
+    void reset();
+
+    void setInputDb (float v)     { inputDb = v; }
+    void setThresholdDb (float v) { thresholdDb = v; }
+    void setRatio (float v)       { ratio = v; }
+    void setAttackMs (float v)    { attackMs = v; }
+    void setReleaseMs (float v)   { releaseMs = v; }
+    void setMakeupDb (float v)    { makeupDb = v; }
+    void setDryWet (float v)      { dryWet = v; }
+
+    void processBlock (juce::AudioBuffer<float>& buffer);
+
+private:
+    float inputDb = 0.0f;
+    float thresholdDb = -18.0f;
+    float ratio = 2.0f;
+    float attackMs = 10.0f;
+    float releaseMs = 250.0f;
+    float makeupDb = 0.0f;
+    float dryWet = 1.0f;
+    double sampleRate = 44100.0;
+    float detectorLevel = 0.0f;
+};
+
+}