important bugfix for PUS TM creator

CHANGELOG.md

@@ -10,6 +10,8 @@ and this project adheres to [Semantic Versioning](http://semver.org/).
 
 ## Fixes
 
+- The `PusTmCreator` API only accepted 255 bytes of source data. It can now accept source
+  data with a size limited only by the size of `size_t`.
 - Important bugfix in CFDP PDU header format: The entity length field and the transaction sequence
   number fields stored the actual length of the field instead of the length minus 1 like specified
   in the CFDP standard.

src/fsfw/tmtcpacket/pus/tm/PusTmCreator.h

@@ -40,7 +40,7 @@ struct PusTmParams {
               size_t dataLen)
       : secHeader(service, subservice, timeStamper), adapter(data, dataLen), sourceData(&adapter) {}
   PusTmSecHeader secHeader;
-  SerialBufferAdapter<uint8_t> adapter;
+  SerialBufferAdapter<size_t> adapter;
   const SerializeIF* sourceData = nullptr;
 };