fix(radio): Fix handling of blank lines in YAML files (#3762)

* Fix handling of blank lines in YAML files.

* Added some basic EOL / blank line unit tests

---------

Co-authored-by: raphaelcoeffic <raphael.coeffic@frafos.com>

radio/src/storage/yaml/yaml_parser.cpp

@@ -302,15 +302,13 @@ YamlParser::parse(const char* buffer, unsigned int size)
             break;
                 
         case ps_CRLF:
-            if (*c == '\n') {
-                // Skip blank lines
-                while (c < end && (*c == '\r' || *c == '\n'))
-                  c += 1;
-                // reset state at EOL
+            // Skip blank lines
+            while (c < end && (*c == '\r' || *c == '\n'))
+                c += 1;
+            // reset state at EOL (unless we have run out of buffer, in case EOL continues in next buffer)
+            if (c < end)
                 reset();
-                continue;
-            }
-            break;
+            continue;
         }
 
         c++;