[CSV-325] CSVParser applies characterOffset to bytePosition, breaking

getBytePosition() for multi-byte prefixes.

Add CSVParser.Builder.setByteOffset(long) (apache#604).

Author: garydgregory

src/changes/changes.xml

@@ -50,8 +50,10 @@
       <action type="fix" dev="ggregory" due-to="Ruiqi Dong, Gary Gregory" issue="CSV-323">ExtendedBufferedReader byte tracking leads to an incorrect CSVRecord.getBytePosition() (#601).</action>
       <action type="fix" dev="ggregory" due-to="Ruiqi Dong, Gary Gregory" issue="CSV-322">CSVFormat.Builder.setQuote() does not refresh quotedNullString (#2447).</action>
       <action type="fix" dev="ggregory" due-to="Ruiqi Dong, Gary Gregory" issue="CSV-324">Lexer.isDelimiter() accepts a partial multi-character delimiter at EOF (#603).</action>
+      <action type="fix" dev="ggregory" due-to="Ruiqi Dong, Gary Gregory" issue="CSV-325">CSVParser applies characterOffset to bytePosition (#604).</action>
       <!-- ADD -->
       <action type="add" dev="ggregory" due-to="Gary Gregory, Indy, Sylvia van Os" issue="CSV-307">Add an "Android Compatibility" section to the web site.</action>
+      <action type="add" dev="ggregory" due-to="Ruiqi Dong, Gary Gregory" issue="CSV-325">Add CSVParser.Builder.setByteOffset(long) (#604).</action>
       <!-- UPDATE --> 
       <action type="update" dev="ggregory" due-to="Gary Gregory, Dependabot">Bump org.apache.commons:commons-parent from 85 to 100 #573, #595.</action>
       <action type="update" dev="ggregory" due-to="Gary Gregory, Dependabot">[test] Bump com.opencsv:opencsv from 5.11.2 to 5.12.0 #558.</action>