This significantly speeds up `yarn lint` for me. It also ensures we’re
listing all source files in the project, including the `.eslintrc` files
and any other files that may be present.

This PR converts everything (aside from electron) from CommonJS to ESM.
It is needed to reduce the changes that will happen during the migration
to Typescript (as TS does not play nice with CJS).

Basically:
- rewrite `require()` to `import`
- rewrite `module.exports` to `exports`
- introduce `ts-node` to run importers so we can convert them to TS too

Lastly, sorry for this larg-ish PR, not my preference but when I tried
to reduce its scope, I would end up with mixed commons/esm that was even
more tricky to handle.

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I am currently not working on adding support for importing to multiple
accounts, but I wanted to give anyone who takes that on a starting point
by updating the underlying C library to provide access to the account
name field.

* Allow libofx to handle decoding imported files

* Add releve.qfx as a test file

* Remove irrelevant redacted transactions from test file

* Fix console overload from long console.warn stacks