rename package from @push.rocks/npmextra to @push.rocks/smartconfig

- Rename all source files from npmextra.* to simpler names (classes.appdata.ts, etc.)
- Rename Npmextra class to Smartconfig
- Config file changed from npmextra.json to smartconfig.json
- KV store path changed from ~/.npmextra/kv to ~/.smartconfig/kv
- Update all imports, tests, and metadata

ts/plugins.ts

@@ -0,0 +1,25 @@
+import * as tsclass from '@tsclass/tsclass';
+
+export { tsclass };
+
+import * as qenv from '@push.rocks/qenv';
+import * as smartlog from '@push.rocks/smartlog';
+import * as path from 'path';
+import * as smartfile from '@push.rocks/smartfile';
+import * as smartjson from '@push.rocks/smartjson';
+import * as smartpath from '@push.rocks/smartpath';
+import * as smartpromise from '@push.rocks/smartpromise';
+import * as smartrx from '@push.rocks/smartrx';
+import * as taskbuffer from '@push.rocks/taskbuffer';
+
+export {
+  qenv,
+  smartlog,
+  path,
+  smartfile,
+  smartjson,
+  smartpath,
+  smartpromise,
+  smartrx,
+  taskbuffer,
+};