[LowPass] added some comments

src/shared/algorithms/Filters/LowPass.cpp

@@ -26,6 +26,7 @@ namespace Boardcore
 {
 
 // TODO: WARNING! initialized at 0
+// WARNING: frequency set by parameters, look for these anyway
 LowPass::LowPass(float gain, float cutoffFreq, float lambda)
     : gain(gain), cutoffFreq(cutoffFreq), lambda(lambda), output(0)
 {

src/shared/algorithms/Filters/LowPass.h

@@ -36,6 +36,7 @@ public:
      * @param lambda The lambda parameter of the filter
      *
      * @note WARNING: Initialize output at 0 at first
+     * @note WARNING: frequency set by parameters, look for these anyway
      */
     LowPass(float gain, float cutoffFreq, float lambda);