beeps are now processed sorely on the computer, added speaker driver (wip)

Former-commit-id: c8339104815a62db51e5bd26460a87f1f653a775
Former-commit-id: f22320a45734b141c4f02ca61fbd79772e32c7c5

work_files/romapidoc/api_speaker.tex

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+The Speaker API provides means to control computer's built-in beeper speaker.
+
+\begin{tabularx}{\textwidth}{l l X}
+	\textbf{\large Function} & \textbf{\large Return} & \textbf{\large Description}
+	\\ \\
+	\endhead
+	speaker.enqueue(len: int, freq: num) & nil & Enqueues speaker driving information. Queues will be started automatically.
+	\\ \\
+	speaker.clear() & nil & Clears speaker queue.
+\end{tabularx}