Add HTTP server

[Feuerswut]

Chrome removed ftp:// protocol from their codebase, hence ftp is not only deprecated, but unabailable for most users.

I suggest using codebase from a simple http server, or writing one as a priority and replacing ftp protocol.

[superiums]

I think webdav server is good too.

[giiutfff]

I suggest add sftp or ftps server. Since using ftp in a shared network is not safe, even more dangerous in open WiFi.

I think webdav server is good too.

Webdav is based on http. Would be nice to have but fewer file manage program support it, and less flexible than ftp.

[superiums]

for daily use, it's better to have a client, so the best choice is webdav and ftp, sftp. for temp use. it's better to not require a client, so http and wendav will be the choice. so webdav is the best for both situation. i think webdav is the next generation rule line. there are lots of file manager support webdav : mix explorer on android, dolphin in linux .... i want to replace mix with materialFiles. but the only reason let me keep mix is the webdav.