Support parsing JSON from each component's main element using the `data-bs-config` attribute.
The `bs-config` attribute will be reserved and omitted during `getDataAttributes` parsing.
With this commit, every component, will create its config object, using:
* defaults
* data-bs-config
* the rest of data attributes
* configuration object given during instance initialization
Co-authored-by: XhmikosR <xhmikosr@gmail.com>
Co-authored-by: Mark Otto <markd.otto@gmail.com>
Co-authored-by: Mark Otto <markdotto@gmail.com>
