HPCC-10447 Add Visualise Tab to ECL Playground

Fixes HPCC-10447
Fixes HPCC-10453
Fixes HPCC-10435

Signed-off-by: Gordon Smith <gordon.smith@lexisnexis.com>
Merge pull request #5165 from GordonSmith/HPCC-10447

HPCC-10447 Add Visualise Tab to ECL Playground

Reviewed-By: Miguel Vazquez <miguel.vazquez@lexisnexis.com>
Reviewed-By: Richard Chapman <rchapman@hpccsystems.com>