Example for repo usage

[akira25]

Issue

I wasn't able to find documentation or examples for how to use this repo in a futuresdr app. If I try to run the agc example app, cargo fails

$ cargo run --example agc 
    Updating crates.io index
    Updating git repository `https://github.com/FutureSDR/FutureSDR`
error: failed to select a version for the requirement `futuresdr = "^0.0.40-dev"`
candidate versions found which didn't match: 0.0.41-dev
location searched: Git repository https://github.com/FutureSDR/FutureSDR?branch=main
required by package `fsdr-blocks v0.2.0 (/home/martin/dev/fsdr-blocks)`
help: if you are looking for the prerelease package it needs to be specified explicitly
    futuresdr = { version = "0.0.41-dev" }

Expected behaviour

• Example app should build on the fly with a recent rust compiler and recent cargo
• Would be lovely, to have some kind of tutorial/documentation, on how to access the blocks in this repository (usage already documented for most)

If the repo relies on the futuresdr main branch (as it looks to me) it would be super cool to have that mentioned anywhere. :)

Trivia

I'm especially interested in the type converter blocks. They look really neat and I would love to use them. https://docs.rs/fsdr-blocks/0.1.0/fsdr_blocks/type_converters/index.html

[ratzrattillo]

Something i wanted to do a long time ago is to do that pull request: #23
It should allow proper compilation.
However even though the AGC sample compiles, i do not know if it is really correct to implement AGC that way. I do not have a lot of signal processing knowledge.

[loic-fejoz]

The main example of using this crate is my CLI fsdr-cli. See https://github.com/loic-fejoz/fsdr-cli/blob/main/Cargo.toml
But it mainly suffer the same problem as to which version to refer to...