[FL-2393][FL-2381] iButton, OneWire: move to plain C (#1068)

* iButton: getting started on the worker concept
* Hal delay: added global instructions_per_us variable
* iButton: one wire slave
* iButton: ibutton key setter
* iButton: one wire host, use ibutton_hal
* iButton\RFID: common pulse decoder concept
* iButton: cyfral decoder
* iButton: worker thread concept
* iButton: metakom decoder
* iButton: write key through worker
* iButton: worker mode holder
* iButton: worker improvements
* iButton: Cyfral encoder
* iButton: Metakom encoder
* lib: pulse protocol helpers
* iButton: Metakom decoder
* iButton: Cyfral decoder
* iButton worker: separate modes
* iButton: libs documentation
* HAL: iButton gpio modes
* iButton worker: rename modes file
* iButton worker, hal: move to LL
* iButton CLI: worker for reading and emulation commands
* iButton HAL: correct init and emulation sequence
* iButton cli: moved to plain C
* iButton: move to worker, small step to plain C
* Libs, one wire: move to plain C
* Libs: added forgotten files to compilation
* iButton writer: get rid of manual disable/enable irq

lib/one_wire/ibutton/encoder/encoder_metakom.h

@@ -0,0 +1,54 @@
+/**
+ * @file encoder_metakom.h
+ * 
+ * Metakom pulse format encoder
+ */
+
+#pragma once
+#include <stdlib.h>
+#include <stdint.h>
+#include <stdbool.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+typedef struct EncoderMetakom EncoderMetakom;
+
+/**
+ * Allocate Metakom encoder
+ * @return EncoderMetakom* 
+ */
+EncoderMetakom* encoder_metakom_alloc();
+
+/**
+ * Deallocate Metakom encoder
+ * @param metakom 
+ */
+void encoder_metakom_free(EncoderMetakom* metakom);
+
+/**
+ * Reset Metakom encoder
+ * @param metakom 
+ */
+void encoder_metakom_reset(EncoderMetakom* metakom);
+
+/**
+ * Set data to be encoded to Metakom pulse format, 4 bytes
+ * @param metakom 
+ * @param data 
+ * @param data_size 
+ */
+void encoder_metakom_set_data(EncoderMetakom* metakom, const uint8_t* data, size_t data_size);
+
+/**
+ * Pop pulse from Metakom encoder
+ * @param cyfral 
+ * @param polarity 
+ * @param length 
+ */
+void encoder_metakom_get_pulse(EncoderMetakom* metakom, bool* polarity, uint32_t* length);
+
+#ifdef __cplusplus
+}
+#endif