reporting - add summary report per watershed group about bcfishpass HOT 6 CLOSED

- Area
- Elevation range
- Total stream length, summaried by
    + waterbody type
    + stream order
    + gradient
- Total fish habitat length, summarized by:
    + habitat type (observed, inferred@15, inferred@15-22, non-habitat)
    + stream order
    + stream gradient
    + waterbody type
- summary stats of order, gradient (min, max, avg, mean, median, etc.)
- Number of modelled crossings
    + open bottom vs closed bottom
- Length of modelled habitat upstream of all modelled crossings
    + habitat type
    + stream order
    + stream gradient
    + waterbody type
- Area of waterbodies coded as fish habitat upstream of all modelled crossings
    + habitat type
    + stream order
    + waterbody type
- Number of PSCIS assessed crossings
    + structure type (open bottom/closed bottom)
    + barrier status (BARRIER, PASSABLE, etc)
    + stream order
    + stream width
    (failure rate)
- Number of PSCIS habitat confirmations, designs, remediations
- observations
    + by species in watershed
    + by species upstream of watershed
- DRA roads
    + surface
    + class