CVarManager: Bring back de/serialization

Runtime/Streams/CTextOutStream.cpp

@@ -0,0 +1,29 @@
+#include "Runtime/Streams/CTextOutStream.hpp"
+
+namespace metaforce {
+CTextOutStream::CTextOutStream(COutputStream& out) : m_out(&out) {}
+
+void CTextOutStream::WriteString(const std::string& str) { CTextOutStream::WriteString(str.c_str(), str.length()); }
+void CTextOutStream::WriteString(const char* str, u32 len) {
+  bool wroteCarriageReturn = false;
+  bool wroteLineFeed = false;
+  for (u32 i = 0; i < len; ++i) {
+    if (str[i] == '\r') {
+      wroteCarriageReturn = true;
+    } else if (str[i] == '\n' && !wroteCarriageReturn) {
+      m_out->WriteChar('\r');
+      wroteLineFeed = true;
+    }
+    m_out->WriteChar(str[i]);
+  }
+
+  /* If we didn't write either a line feed or carriage return we need to do that now */
+  if (!wroteCarriageReturn && !wroteLineFeed) {
+    m_out->WriteChar('\r');
+    m_out->WriteChar('\n');
+  }
+
+  /* Since this is a text buffer, we always want to flush after writing a string */
+  m_out->Flush();
+}
+} // namespace metaforce