Custom Histogram Chart with Specification Limits in Apache Superset

The goal is to create a custom histogram chart in Apache Superset that not only displays the frequency distribution of
data but also incorporates visual indicators for minimum and maximum specification thresholds.
Requirement Details:
Chart Type: Histogram
The chart should display a histogram with bars representing the frequency distribution of a dataset. The X-axis will
represent the value range (e.g., a quality parameter or measurement), and the Y-axis will represent the frequency or
count of data points within each bin.
Vertical Reference Lines(New Feature): Add two vertical reference lines to indicate the minimum specification
limit (Min Spec) and maximum specification limit (Max Spec).
These lines will visually highlight the acceptable range of values, helping stakeholders quickly identify whether data
points fall within or outside the specification. If there are property to set the attributes like color and label name for
min and max spec will be good but that is not a must have.
Use Case: This chart will help teams analyse data distributions (e.g., Highest Mixer Temperature) and identify
deviations or areas of non-compliance. It provides a visual summary that is easy to interpret for stakeholders across
different levels.