A join patch for MCOL-4527 (a performance hack) and MCOL-4539 (a bug fix)

- MCOL-4527 Simple query performace is degraded between 5.4 and 5.5

  xxx_nopad_bin collations are now around 30% faster on simple queries like:

    SELECT * FROM t1 WHERE short_char_column_nopad_bin = 'literal'

  The gain is achieved by comparing two short CHAR values as uint64_t.

  Note, this patch does not affect xxx_bin collations!
  It wouldn't be correct to apply the same improvement for xxx_bin
  collations (i.e. with PAD SPACE attribute), because it would change
  the way how trailing spaces are compared.

- MCOL-4539 WHERE short_char_column='literal' ignores the collation on a huge table

  Only the first thread used a correct collation when performing:
    WHERE short_char_char='literal'
  Other (15) threads used the server default collation, because
  the charsetNumber attribute was not copyed during cloning.

- This patch also adds mtr/basic/suite.opt, so "mtr" can run without --extern.

primitives/primproc/columncommand.cpp

@@ -842,6 +842,7 @@ void ColumnCommand::duplicate(ColumnCommand* cc)
     cc->colType.colDataType = colType.colDataType;
     cc->colType.compressionType = colType.compressionType;
     cc->colType.colWidth = colType.colWidth;
+    cc->colType.charsetNumber = colType.charsetNumber;
     cc->BOP = BOP;
     cc->filterCount = filterCount;
     cc->fFilterFeeder = fFilterFeeder;