Move queries to where they belong.

src-electron/db/query-command.js

src-electron/db/query-endpoint-type.js

src-electron/db/query-zcl.js

src-electron/generator/helper-endpointconfig.js

src-electron/generator/helper-session.js

src-electron/zcl/zcl-loader.js

test/query.test.js

test/validation.test.js