Moved electron related stuff into app folder

installers/create-exe.js

@@ -1,25 +0,0 @@
-const createWindowsInstaller = require('electron-winstaller').createWindowsInstaller
-const path = require('path')
-const package = require('../package.json');
-
-getInstallerConfig()
-  .then(createWindowsInstaller)
-  .catch((error) => {
-    console.error(error.message || error)
-    process.exit(1)
-  })
-
-function getInstallerConfig () {
-  console.log('creating windows installer')
-
-  return Promise.resolve({
-    setupExe: `${package.name}.exe`,
-    appDirectory: path.join(__dirname, '../release-builds/openflexure-ev-win32-x64'),
-    authors: 'OpenFlexure',
-    noMsi: true,
-    outputDirectory: path.join(__dirname, '../release-builds/dist', package.version),
-    exe: 'openflexure-ev.exe',
-    setupIcon: path.join(__dirname, '../icons/win/icon.ico'),
-    certificateFile: "C:\\Certs\\BATH-OPEN-INSTRUMENTATION-GROUP.pfx"
-  })
-}