[FL-84] iButton app, dallas emulate + cyfral read, cyfral emulate (#253)

* maxim crc function
* one wire template device and ds1990 classes
* 3 fields for addr
* cyfral emulator lib
* add cyfral read mode, refract rendering and events
* add ADC1_IN14, add adc interrupt
* cyfral read mode
* rename and move api-hal includes folder
* build onewire libs only if we build app
* start in mode 0

lib/onewire/one_wire_gpio.h

@@ -0,0 +1,130 @@
+#pragma once
+#include "flipper.h"
+#include "flipper_v2.h"
+#include "one_wire_timings.h"
+
+class OneWireGpio {
+private:
+    const GpioPin* gpio;
+
+public:
+    OneWireGpio(const GpioPin* one_wire_gpio);
+    ~OneWireGpio();
+    bool reset(void);
+    bool read_bit(void);
+    uint8_t read(void);
+    void read_bytes(uint8_t* buf, uint16_t count);
+    void write_bit(bool value);
+    void write(uint8_t value);
+    void start(void);
+    void stop(void);
+};
+
+OneWireGpio::OneWireGpio(const GpioPin* one_wire_gpio) {
+    gpio = one_wire_gpio;
+}
+
+OneWireGpio::~OneWireGpio() {
+    stop();
+}
+
+void OneWireGpio::start(void) {
+    gpio_init(gpio, GpioModeOutputOpenDrain);
+}
+
+void OneWireGpio::stop(void) {
+    gpio_init(gpio, GpioModeAnalog);
+}
+
+bool OneWireGpio::reset(void) {
+    uint8_t r;
+    uint8_t retries = 125;
+
+    // wait until the gpio is high
+    gpio_write(gpio, true);
+    do {
+        if(--retries == 0) return 0;
+        delay_us(2);
+    } while(!gpio_read(gpio));
+
+    // pre delay
+    delay_us(OneWireTiming::RESET_DELAY_PRE);
+
+    // drive low
+    gpio_write(gpio, false);
+    delay_us(OneWireTiming::RESET_DRIVE);
+
+    // release
+    gpio_write(gpio, true);
+    delay_us(OneWireTiming::RESET_RELEASE);
+
+    // read and post delay
+    r = !gpio_read(gpio);
+    delay_us(OneWireTiming::RESET_DELAY_POST);
+
+    return r;
+}
+
+bool OneWireGpio::read_bit(void) {
+    bool result;
+
+    // drive low
+    gpio_write(gpio, false);
+    delay_us(OneWireTiming::READ_DRIVE);
+
+    // release
+    gpio_write(gpio, true);
+    delay_us(OneWireTiming::READ_RELEASE);
+
+    // read and post delay
+    result = gpio_read(gpio);
+    delay_us(OneWireTiming::READ_DELAY_POST);
+
+    return result;
+}
+
+void OneWireGpio::write_bit(bool value) {
+    if(value) {
+        // drive low
+        gpio_write(gpio, false);
+        delay_us(OneWireTiming::WRITE_1_DRIVE);
+
+        // release
+        gpio_write(gpio, true);
+        delay_us(OneWireTiming::WRITE_1_RELEASE);
+    } else {
+        // drive low
+        gpio_write(gpio, false);
+        delay_us(OneWireTiming::WRITE_0_DRIVE);
+
+        // release
+        gpio_write(gpio, true);
+        delay_us(OneWireTiming::WRITE_0_RELEASE);
+    }
+}
+
+uint8_t OneWireGpio::read(void) {
+    uint8_t result = 0;
+
+    for(uint8_t bitMask = 0x01; bitMask; bitMask <<= 1) {
+        if(read_bit()) {
+            result |= bitMask;
+        }
+    }
+
+    return result;
+}
+
+void OneWireGpio::read_bytes(uint8_t* buffer, uint16_t count) {
+    for(uint16_t i = 0; i < count; i++) {
+        buffer[i] = read();
+    }
+}
+
+void OneWireGpio::write(uint8_t value) {
+    uint8_t bitMask;
+
+    for(bitMask = 0x01; bitMask; bitMask <<= 1) {
+        write_bit((bitMask & value) ? 1 : 0);
+    }
+}