Recognize Block Level Water and Gas Pressure Summary Vectors

This commit adds support for the BWPR and BGPR summary vectors that
output block-level phase pressures for water (BWPR) and gas (BGPR)
to the summary file.

src/opm/output/eclipse/Summary.cpp

@@ -2193,7 +2193,9 @@ static const std::unordered_map< std::string, Opm::UnitSystem::measure> block_un
   {"BKRG"      , Opm::UnitSystem::measure::identity},
   {"BKRW"      , Opm::UnitSystem::measure::identity},
   {"BWPC"      , Opm::UnitSystem::measure::pressure},
+  {"BWPR"      , Opm::UnitSystem::measure::pressure},
   {"BGPC"      , Opm::UnitSystem::measure::pressure},
+  {"BGPR"      , Opm::UnitSystem::measure::pressure},
   {"BVWAT"      , Opm::UnitSystem::measure::viscosity},
   {"BWVIS"      , Opm::UnitSystem::measure::viscosity},
   {"BVGAS"      , Opm::UnitSystem::measure::viscosity},