lego1: implement MxTimer + dependencies

LEGO1/mxstring.cpp

@@ -0,0 +1,30 @@
+#include "mxstring.h"
+#include <stdlib.h>
+#include <string.h>
+
+MxString::MxString()
+{
+  // Set string to one char in length and set that char to null terminator
+  this->m_data = (char *)malloc(1);
+  this->m_data[0] = 0;
+  this->m_length = 0;
+}
+
+// TODO: this *mostly* matches, again weird with the comparison
+const MxString &MxString::operator=(const char *param)
+{
+  if (this->m_data != param)
+  {
+    free(this->m_data);
+    this->m_length = strlen(param);
+    this->m_data = (char *)malloc(this->m_length + 1);
+    strcpy(this->m_data, param);
+  }
+
+  return *this;
+}
+
+MxString::~MxString()
+{
+  free(this->m_data);
+}