Throw custom errors

[m-mohr]

I've added two custom error classes so that we can catch the errors separately.
I've also added individual error codes and the "variables" in the message to the text so that implementing libraries can catch and translate the error messages if they want.
Lastly, the prefixes in the exceptions have been removed and some error messages be simplified as they swallow up to users and should likely be a bit less "techy" (devs can enable the logging in the console).

I'm following the behavior for providing a "cause" as proposed here: https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Error/cause#providing_structured_data_as_the_error_cause

Related issue: radiantearth/stac-browser#123

[m-mohr]

@DanielJDufour Happy new year! Does this look goot to you, too?

[DanielJDufour]

Looks awesome. In the future, we might consider if we want to define the Error Codes as constant variables and export them, but that's minor.

[DanielJDufour]

Also, thanks for introducing me to the cause error property. I hadn't heard about it until you did!