Download repository from URL

[HardCodeDev777]

Currently vv supports only two ways of analyzing repository: --path path/to/repo or selection prompt. But what if user doesn't have repository on pc? Then they will probably download it. But instead vv can do it automaticly.

I think it should be like:

1. User pass smth like --url https://github.com/HardCodeDev777/vv
2. vv will download it(maybe we can make cache/ directory), analyze it, etc.
3. Next time vv will delete this cache/.

Or we can use same --path option, but if it starts with https://, then download from this URL.