[FL-1968] Pin code locking (#788)

* Gui: code input module
* Gui: fix size to fit frame
* Desktop: PIN config and lock option
* Gui: code input: cleanup, offset input fields if no header present
* Desktop: move code unlock to desktop_locked scene
* Desktop: fix unlock with back key
* Desktop: bump settings version
* Desktop: correct scene usage.

Co-authored-by: あく <alleteam@gmail.com>

applications/gui/modules/code_input.h

@@ -0,0 +1,91 @@
+/**
+ * @file code_input.h
+ * GUI: CodeInput keyboard view module API
+ */
+
+#pragma once
+
+#include <gui/view.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/** Code input anonymous structure  */
+typedef struct CodeInput CodeInput;
+
+/** callback that is executed when entered code matches ext buffer */
+typedef void (*CodeInputOkCallback)(void* context);
+
+/** callback that is executed when entered code does not matches ext buffer */
+typedef void (*CodeInputFailCallback)(void* context);
+
+/** Allocate and initialize code input. This code input is used to enter codes.
+ *
+ * @return     CodeInput instance pointer
+ */
+CodeInput* code_input_alloc();
+
+/** Deinitialize and free code input
+ *
+ * @param      code_input  Code input instance
+ */
+void code_input_free(CodeInput* code_input);
+
+/** Get code input view
+ *
+ * @param      code_input  code input instance
+ *
+ * @return     View instance that can be used for embedding
+ */
+View* code_input_get_view(CodeInput* code_input);
+
+/** Set code input result callback
+ *
+ * @param      code_input        code input instance
+ * @param      ok_callback    ok callback fn
+ * @param      fail_callback  fail callback fn
+ * @param      callback_context  callback context
+ * @param      buffer       buffer to use
+ * @param      buffer_length       buffer length
+ * @param      update  set true to update buffer 
+ */
+void code_input_set_result_callback(
+    CodeInput* code_input,
+    CodeInputOkCallback ok_callback,
+    CodeInputFailCallback fail_callback,
+    void* callback_context,
+    uint8_t* buffer,
+    uint8_t* buffer_length,
+    bool update);
+
+/** Set code input header text
+ *
+ * @param      code_input  code input instance
+ * @param      text        text to be shown
+ */
+void code_input_set_header_text(CodeInput* code_input, const char* text);
+
+/** Compare two buffers
+ *
+ * @param      in       buffer to compare to source
+ * @param      len_in   length of input buffer
+ * @param      src      source buffer
+ * @param      len_src  length of insourceput buffer
+ * @return     true if buffers match
+ */
+
+bool code_input_compare(uint8_t* in, size_t len_in, uint8_t* src, size_t len_src);
+
+/** Push input into the end of array
+ *
+ * @param      buffer   buffer
+ * @param      length   length of buffer
+ * @param      key      input key
+ * @return     new length of input buffer
+ */
+size_t code_input_push(uint8_t* buffer, size_t length, InputKey key);
+
+#ifdef __cplusplus
+}
+#endif