Proposed change to the format of the examples

[dtbox2]

Proposed change to the format of the examples:

Currently the repo is setup to use the example format:

cargo run --release --example http-client

to run each example.

I find this difficult for a number of reasons:

1.) Multiple apparent versions of the example source exist in the repo:

diff intro/http-client/src/main.rs intro/http-client/examples/http-client.rs

Having 2 different apparent source files for the same example in the repo could cause some unnecessary confusion.

2.) If you want to start a project based on that example, you're left with the very confusing process of trying to figure out how to integrate a new cargo generate folder with the example folder.

It would seem so much easier to just create each example as a matching set of a complete cargo generated project that can be a starting point. (Minus the git, vscode, wokwi integrations.)

The challenge:

The main challenge I see to this is that git/wokwi/vscode etc integrations that exists in the cargo generated project. I would suggest completely stripping them from the suggested examples.

[SergioGasquez]

Basically, this approach was used to match what we currently have in https://github.com/esp-rs/std-training/. At the beginning of this repo, we only had the solutions of the exercises, which is another option.