Feature - Add API to create web component element upon user request (Low priority)

Current behavior is to create a web component referenced by the tag name <carbox-date-picker> by simply importing the library. This behavior is good, especially for projects that only contain HTML and CSS code. However, it could be valuable to have an API allowing users of the library to optionally create the web component when needed. Benefits:

• global name space is only polluted when the user specifically requests.
• can name the web component a different name.
• can create multiple instances of the component (not sure yet if this is actually beneficial, but it could be one day).

The current behavior would become exclusive to when the library is imported as a CDN.