Create constraint suggestion rules for continuous columns

[dustin-lange]

For columns with continuous values (int, double, ...), we want to suggest appropriate constraints. We need to determine when we want to use static rules (e.g., max/min; this could replace the isPositive rule also) and when to use anomaly detection. May depend on whether there is a trend change in the data distribution.

[lange-labs]

Closing due to inactivity