All names may be 2048 chars long, all descriptions are of unlimited. Closes #942

Update SQL script:
ALTER TABLE "DB"."ODCS"."DPU_INSTANCE" MODIFY "name" VARCHAR(2048);
ALTER TABLE "DB"."ODCS"."DPU_INSTANCE" MODIFY "description" LONG VARCHAR;
ALTER TABLE "DB"."ODCS"."DPU_INSTANCE" MODIFY "tool_tip" LONG VARCHAR;
ALTER TABLE "DB"."ODCS"."DPU_TEMPLATE" MODIFY "name" VARCHAR(2048);
ALTER TABLE "DB"."ODCS"."DPU_TEMPLATE" MODIFY "description" LONG VARCHAR;
ALTER TABLE "DB"."ODCS"."EXEC_DATAUNIT_INFO" MODIFY "name" VARCHAR(2048);
ALTER TABLE "DB"."ODCS"."EXEC_SCHEDULE" MODIFY "name" VARCHAR(2048);