fix: handle "Start of measurement" line in ASCReader

Author: RitheeshBaradwaj

CONTRIBUTORS.txt

@@ -81,4 +81,5 @@ Felix Nieuwenhuizen
 @fjburgos
 @pkess
 @felixn
-@Tbruno25
+@Tbruno25
+@RitheeshBaradwaj

can/io/asc.py

@@ -275,6 +275,11 @@ def __iter__(self) -> Generator[Message, None, None]:
                 )
                 continue
 
+            # Handle the "Start of measurement" line
+            if line.startswith("0.000000") and "Start of measurement" in line:
+                # Skip this line as it's just an indicator
+                continue
+
             if not ASC_MESSAGE_REGEX.match(line):
                 # line might be a comment, chip status,
                 # J1939 message or some other unsupported event