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GH-43443: [Go] [IPC] Infer schema from first record if not specified (#43484)



### Rationale for this change

Fixes: #43443 

Makes usage of the IPC writer and any writers that use it such the flight writer simpler.

### What changes are included in this PR?

- Infer schema from first record if schema is not specified
- IPC and Flight tests

### Are these changes tested?

Yes

### Are there any user-facing changes?

Any `ipc.Writer` that does not specify the optional argument `ipc.WithSchema` will no longer return an error as long as the incoming stream of records has a consistent schema.

* GitHub Issue: #43443

Authored-by: Joel Lubinitsky <joellubi@gmail.com>
Signed-off-by: Joel Lubinitsky <joellubi@gmail.com>