Improvements to TypeScript interfaces

Have fixed all TypeScript errors, shouldn't have any impact on functionality.

Fixes for windows

should stop a build issue with windows devices

Fixed bug with config and Reporter Types

v7.1.1

- B fixed typing error

Support for VS Codium

Added a reporter for vs codium

Thanks to @stevendkwtz

Typescript

There should be no visible changes from this release ¯_(ツ)_/¯
But all of the source files have been upgraded to typescript.

Normally I would set this as a patch release, but I making it a major version as I am concerned about changes to have javascript and typescript handle exports.

I have had to use the following a bit

Imports

var a = require("a")
⇓
import {a} from "a"
or 
import * as a from "a"

Fix JestReporter importing full class instead of type

For the future, we have set "importsNotUsedAsValues" to "error" to prevent future recurrences.

This helps other packages that have this value set not error-out because they are using Approvals.

fix version number in npm package

Fixes #150
the 'v' in v6.2.3 caused trouble with npm

Minor bug with Angular + Jest

Added check when running JestApprovals in angular

v6.2.1: Fix some warnings about imports

This fixes the following warnings in v6.2.0

$ eslint ./src --fix && eslint ./tests --fix && tsc --noEmit --pretty && svelte-check
node_modules/approvals/lib/Core/Options.ts:2:1 - error TS1371: This import is never used as a value and must use 'import type' because 'importsNotUsedAsValues' is set to 'error'.
2 import {Namer} from "../Namer";
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
node_modules/approvals/lib/Providers/Jest/JestApprovals.ts:3:1 - error TS6133: 'getJestNamer' is declared but its value is never read.
3 import {getJestNamer} from "./JestNamer";
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Found 2 errors in 2 files.
Errors  Files
     1  node_modules/approvals/lib/Core/Options.ts:2
     1  node_modules/approvals/lib/Providers/Jest/JestApprovals.ts:3

Add JestReporter reporter for CI

• Add JestReporter: see docs
• Also, improved documentation - see docs/README.md.