esp32-snippets BLE replacement

[vicatcu]

This PR was created by simply simply running this NodeJS script from a clean checkout of the latest / master branch of https://github.com/nkolban/esp32-snippets

const fs = require('fs');
const dest_dir = '/home/me/arduino-esp32/libraries/BLE/src';
const src_dir =  './cpp_utils';
const dest_files = fs.readdirSync(dest_dir);
const src_files = fs.readdirSync(src_dir);

src_files.forEach(file => {
  if (dest_files.indexOf(file) >= 0) {
    console.log(`copying file "${file}"`);
    fs.copyFileSync(`${src_dir}/${file}`, `${dest_dir}/${file}`);
  }
});

console.log('done');

It does not add new files, it merely replaces existing files in the arduino-esp32 library folder one-for-one.

This is in light of nkolban/esp32-snippets#796 and by proxy aims to address #4046 (comment)

[vicatcu]

This is never going to be merged, and maybe it shouldn't be

[h2zero]

For the most part this should be merged with a few changes, but like you said "never going to be merged".

I maintain a library here based on this API that is updated a much lighter weight if you want to check it out, I'd appreciate some more testers before release 😄.