[CALCITE-1459] Add Apache Apex to Powered By page (Chinmay Kolhatkar)
[CALCITE-1459] Add Apache Apex to Powered By page (Chinmay Kolhatkar)

Close apache/calcite#315

vlsi/calcite,joshelser/calcite-avatica,jcamachor/calcite,b-slim/calcite,minji-kim/calcite,googleinterns/calcite,jcamachor/calcite,julianhyde/calcite,sreev/incubator-calcite,jcamachor/calcite,apache/calcite-avatica,googleinterns/calcite,datametica/calcite,b-slim/calcite,apache/calcite,apache/calcite-avatica,googleinterns/calcite,googleinterns/calcite,looker-open-source/calcite,dindin5258/calcite,looker-open-source/calcite-avatica,julianhyde/calcite,jcamachor/calcite,julianhyde/calcite,xhoong/incubator-calcite,arina-ielchiieva/calcite,googleinterns/calcite,minji-kim/calcite,jcamachor/calcite,dindin5258/calcite,looker-open-source/calcite,xhoong/incubator-calcite,dindin5258/calcite,datametica/calcite,minji-kim/calcite,vlsi/incubator-calcite,vlsi/incubator-calcite,apache/calcite,apache/calcite,sreev/incubator-calcite,apache/calcite-avatica,sreev/incubator-calcite,looker-open-source/calcite,apache/calcite,arina-ielchiieva/calcite,dindin5258/calcite,apache/calcite,apache/calcite-avatica,looker-open-source/calcite,vlsi/calcite,looker-open-source/calcite-avatica,datametica/calcite,vlsi/calcite,vlsi/calcite,dindin5258/calcite,jcamachor/calcite,googleinterns/calcite,julianhyde/calcite,datametica/calcite,joshelser/calcite-avatica,datametica/calcite,b-slim/calcite,apache/calcite-avatica,looker-open-source/calcite,arina-ielchiieva/calcite,looker-open-source/calcite-avatica,b-slim/calcite,xhoong/incubator-calcite,b-slim/calcite,xhoong/incubator-calcite,apache/calcite,vlsi/calcite,arina-ielchiieva/calcite,vlsi/calcite,julianhyde/calcite,arina-ielchiieva/calcite,joshelser/calcite-avatica,minji-kim/calcite,looker-open-source/calcite-avatica,looker-open-source/calcite,dindin5258/calcite,looker-open-source/calcite-avatica,sreev/incubator-calcite,julianhyde/calcite,minji-kim/calcite,datametica/calcite