added send o sync

Author: Rickard Lundin

src/chunked/arrow_converter.rs

@@ -346,7 +346,7 @@ struct HandlerBooleanBuilder {
     boolean_builder: BooleanBuilder,
     runes_in_column: usize,
     name: String,
-    trimmer: Box<dyn ColumnTrimmer>,
+    trimmer: Box<dyn ColumnTrimmer + Send + Sync >,
 }
 
 impl ColumnBuilder for HandlerBooleanBuilder {

src/trimmer.rs

@@ -28,13 +28,16 @@
 use std::cmp::min;
 
 use padder::{Alignment, Symbol};
+use crate::converter::Converter;
 
 use crate::datatype::DataType;
 
 pub(crate) trait ColumnTrimmer {
     fn find_start_stop(&self, data: &[u8], runes: i16) -> (usize, usize);
     // TODO @Willhelm perhaps add trim function here ?
 }
+//unsafe impl Send for  ColumnTrimmer {}
+//unsafe impl Sync for  ColumnTrimmer {}