Use file passed on command line when using --upload or --verify

[ArcanoxDragon]

This removes the requirement for .ino files to match their folder name when the Compiler is invoked via the command line with an explicit .ino file path. Fixes #10755 which in turn fixes microsoft/vscode-arduino#1100. When invoking compiler via --upload or --verify, it doesn't make sense to require the .ino sketch name to match the containing folder name, as other IDEs do not have a reason to enforce this requirement. This should allow tools like microsoft/vscode-arduino to eventually support multiple .ino files per project more gracefully as well.

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[matthijskooijman]

I believe this is the wrong approach to fix this.

With this change, the .ino file passed on the commandline becomes somehow special. So this means that you'll potentially get different results compiling a sketch, based on which of the multiple .ino files you pass on the commandline, which is not something that we would want. It also means that a sketch that is considered invalid by the GUI, is considered valid by the CLI, which is inconsistent.

if we would decide to lift the requirement, then I believe the compilation should still be deterministic, so the result should be the same, regardless of which .ino file (or the directory name maybe) you specify to indicate the sketch. I think this is also how arduino-cli implements this now.

I'm going to go ahead and close this PR for this reason. I'll add a comment to the issue in a minute discussing alternatives.