Retry timed out requests to support poorly characterized non-real-time networks

[pavel-kirienko]

One is unlikely to encounter packet loss if the network is well-designed, but developers often have to deal with overloaded networks where the timing guarantees expected by Cyphal are not upheld.

Extend the FileLocationSpecifier with the number of requests made:

https://github.com/Zubax/kocherga/blob/85f24d4c7f1e67e5c30e21462f8106c7cc482de8/kocherga/kocherga.hpp#L885-L892

[pavel-kirienko]

Done in #19