[FL-2655, FL-2650] Buffered file streams (#1424)

* Initial buffered file stream implementation
* Fix logical errors
* Fix more logical errors
* Minimally working implementation
* Adapt infrared unit tests for buffered streams
* Increase read buffer size from 512 to 1K
* Correct naming and formatting
* More code improvements
* Allow passing access and open modes for buffered streams
* Implement tests for buffered streams
* Better file and method names
* Add comments and correct formatting
* Use buffered streams in Infrared
* Fix compilation error

lib/flipper_format/flipper_format.c

@@ -2,6 +2,7 @@
 #include <toolbox/stream/stream.h>
 #include <toolbox/stream/string_stream.h>
 #include <toolbox/stream/file_stream.h>
+#include <toolbox/stream/buffered_file_stream.h>
 #include "flipper_format.h"
 #include "flipper_format_i.h"
 #include "flipper_format_stream.h"
@@ -36,11 +37,24 @@ FlipperFormat* flipper_format_file_alloc(Storage* storage) {
     return flipper_format;
 }
 
+FlipperFormat* flipper_format_buffered_file_alloc(Storage* storage) {
+    FlipperFormat* flipper_format = malloc(sizeof(FlipperFormat));
+    flipper_format->stream = buffered_file_stream_alloc(storage);
+    flipper_format->strict_mode = false;
+    return flipper_format;
+}
+
 bool flipper_format_file_open_existing(FlipperFormat* flipper_format, const char* path) {
     furi_assert(flipper_format);
     return file_stream_open(flipper_format->stream, path, FSAM_READ_WRITE, FSOM_OPEN_EXISTING);
 }
 
+bool flipper_format_buffered_file_open_existing(FlipperFormat* flipper_format, const char* path) {
+    furi_assert(flipper_format);
+    return buffered_file_stream_open(
+        flipper_format->stream, path, FSAM_READ_WRITE, FSOM_OPEN_EXISTING);
+}
+
 bool flipper_format_file_open_append(FlipperFormat* flipper_format, const char* path) {
     furi_assert(flipper_format);
 
@@ -87,6 +101,11 @@ bool flipper_format_file_close(FlipperFormat* flipper_format) {
     return file_stream_close(flipper_format->stream);
 }
 
+bool flipper_format_buffered_file_close(FlipperFormat* flipper_format) {
+    furi_assert(flipper_format);
+    return buffered_file_stream_close(flipper_format->stream);
+}
+
 void flipper_format_free(FlipperFormat* flipper_format) {
     furi_assert(flipper_format);
     stream_free(flipper_format->stream);

lib/flipper_format/flipper_format.h

@@ -115,6 +115,12 @@ FlipperFormat* flipper_format_string_alloc();
  */
 FlipperFormat* flipper_format_file_alloc(Storage* storage);
 
+/**
+ * Allocate FlipperFormat as file, buffered read-only mode.
+ * @return FlipperFormat* pointer to a FlipperFormat instance
+ */
+FlipperFormat* flipper_format_buffered_file_alloc(Storage* storage);
+
 /**
  * Open existing file. 
  * Use only if FlipperFormat allocated as a file.
@@ -124,6 +130,15 @@ FlipperFormat* flipper_format_file_alloc(Storage* storage);
  */
 bool flipper_format_file_open_existing(FlipperFormat* flipper_format, const char* path);
 
+/**
+ * Open existing file, read-only with buffered read operations.
+ * Use only if FlipperFormat allocated as a file.
+ * @param flipper_format Pointer to a FlipperFormat instance
+ * @param path File path
+ * @return True on success
+ */
+bool flipper_format_buffered_file_open_existing(FlipperFormat* flipper_format, const char* path);
+
 /**
  * Open existing file for writing and add values to the end of file. 
  * Use only if FlipperFormat allocated as a file.
@@ -159,6 +174,14 @@ bool flipper_format_file_open_new(FlipperFormat* flipper_format, const char* pat
  */
 bool flipper_format_file_close(FlipperFormat* flipper_format);
 
+/**
+ * Closes the file, use only if FlipperFormat allocated as a buffered file.
+ * @param flipper_format
+ * @return true
+ * @return false
+ */
+bool flipper_format_buffered_file_close(FlipperFormat* flipper_format);
+
 /**
  * Free FlipperFormat.
  * @param flipper_format Pointer to a FlipperFormat instance