[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/pulse_protocols/pulse_glue.c

@@ -0,0 +1,55 @@
+#include "pulse_glue.h"
+
+struct PulseGlue {
+    int32_t hi_period;
+    int32_t low_period;
+    int32_t next_hi_period;
+};
+
+PulseGlue* pulse_glue_alloc() {
+    PulseGlue* pulse_glue = malloc(sizeof(PulseGlue));
+    pulse_glue_reset(pulse_glue);
+    return pulse_glue;
+}
+
+void pulse_glue_free(PulseGlue* pulse_glue) {
+    free(pulse_glue);
+}
+
+void pulse_glue_reset(PulseGlue* pulse_glue) {
+    pulse_glue->hi_period = 0;
+    pulse_glue->low_period = 0;
+    pulse_glue->next_hi_period = 0;
+}
+
+bool pulse_glue_push(PulseGlue* pulse_glue, bool polarity, uint32_t length) {
+    bool pop_ready = false;
+    if(polarity) {
+        if(pulse_glue->low_period == 0) {
+            // stage 1, accumulate hi period
+            pulse_glue->hi_period += length;
+        } else {
+            // stage 3, accumulate next hi period and be ready for pulse_glue_pop
+            pulse_glue->next_hi_period = length;
+
+            // data is ready
+            pop_ready = true;
+        }
+    } else {
+        if(pulse_glue->hi_period != 0) {
+            // stage 2, accumulate low period
+            pulse_glue->low_period += length;
+        }
+    }
+
+    return pop_ready;
+}
+
+void pulse_glue_pop(PulseGlue* pulse_glue, uint32_t* length, uint32_t* period) {
+    *length = pulse_glue->hi_period + pulse_glue->low_period;
+    *period = pulse_glue->hi_period;
+
+    pulse_glue->hi_period = pulse_glue->next_hi_period;
+    pulse_glue->low_period = 0;
+    pulse_glue->next_hi_period = 0;
+}