HPCC-7985 Add generic visualisations to ECL Watch

Initial commit with:
Bar Chart
Pie Chart
Donut Chart
Slider Control
Force Directed Graph
Cooccurance Graph
Histogram
Scatter Plot

Fixes HPCC-7985
Fixes HPCC-10394
Fixes HPCC-10395

Signed-off-by: Gordon Smith <gordon.smith@lexisnexis.com>
Merge pull request #5091 from GordonSmith/ECLWatch_Viz

HPCC-7985 Add generic visualisations to ECL Watch

Reviewed-By: Miguel Vazquez <miguel.vazquez@lexisnexis.com>
Reviewed-By: Richard Chapman <rchapman@hpccsystems.com>