#17 list-open-calls double-counts proposals if there are multiple calls with the same solicitation/call name

For example, both IRAM and NRAO have "26B" call. The proposal count for NRAO and IRAM both show the sum of the number of NRAO and IRAM proposals rather than the number for the individual soliciations. Likely fix: modify `WHERE` clauses in `print-open-calls` to also filter on the `organization` (in addition to solicitation). https://code.crackonoon.com/george/proposal_database/src/main/proposal_database.rkt#L294