Remove /build doc content with .gitignore & remove from the gitub repo

[bepro-bot]

Creates a lot of problems having to solve Merges with builds which are irrelevant

The goal is to remove /build to .gitignore & remove from "master"

But the /build should be always done whenever anyone uses bepro-js, so on the "npm i" command

[bepro-bot]

Created by mariuseliassen at 2021-05-18T15:31:35.000Z and updated at 2021-05-18T15:31:35.000Z

We should also remove the ".DS_Store" file in root and subfolders.

[bepro-bot]

Created by nodexchange at 2021-05-24T08:47:03.000Z and updated at 2021-05-24T08:47:03.000Z

This might be related:
bepronetwork/bepro-js#60

[bepro-bot]

Created by riaje at 2021-06-06T21:48:04.000Z and updated at 2021-06-06T21:48:04.000Z

@Ruiub3i
Seem to be fix by the work of @moshmage in this pull request, check but normally you can close it
(see the part "Deals with" in the PR)

bepronetwork/bepro-js#47