Add a target for I2C activity.

Components/I2C/I2C.cpp

@@ -0,0 +1,35 @@
+//
+//  I2C.cpp
+//  Clock Signal
+//
+//  Created by Thomas Harte on 16/03/2024.
+//  Copyright © 2024 Thomas Harte. All rights reserved.
+//
+
+#include "I2C.hpp"
+
+using namespace I2C;
+
+void Bus::set_data(bool pulled) {
+	set_clock_data(clock_, pulled);
+}
+bool Bus::data() {
+	return data_;
+}
+
+void Bus::set_clock(bool pulled) {
+	set_clock_data(pulled, data_);
+}
+bool Bus::clock() {
+	return clock_;
+}
+
+void Bus::set_clock_data(bool clock_pulled, bool data_pulled) {
+	// TODO: all intelligence.
+	clock_ = clock_pulled;
+	data_ = data_pulled;
+}
+
+void Bus::add_peripheral(Peripheral *peripheral, int address) {
+	peripherals_[address] = peripheral;
+}