### Description
Currently we try to include all prebuilt binaries into the NPM packages.
This was working until we added libonnxruntime_providers_cuda.so
(>400MB) into the NPM package. The NPM registry refuses to accept new
package publishment because the file is too large.
To make the new NPM package working, we have to remove the large file
from the package, and add a new script on package installation. This
script will try to dynamically install onnxruntime CUDA dynamic library
for Linux/x64.
* working on re-organizing js code for ortweb
* remove dup files
* move folder
* fix common references
* fix common es5
* add webpack to common
* split interfact/impl
* use cjs for node
* add npmignore for common
* update sourcemap config for common
* update node
* adjust folder/path in CI and build
* update folder
* nit: readme
* add bundle for dev
* correct nodejs paths
* enable ORT_API_MANUAL_INIT
* set name for umd library
* correct name for commonjs export
* add priority into registerBackend()
* fix npm ci pwd
* update eslintrc
* revise code
* revert package-lock lockfileVersion 2->1
* update prebuild
* resolve comments
* update document
* revise eslint config
* update eslint for typescript rules
* revert changes by mistake in backend.ts
* add env
* resolve comments
