autoComplete (filter forward based on inlined answer Options)

[fredhersch]

Is your feature request related to a problem? Please describe.
For a selection list where there are many options, be able to filter forward to narrow down the option to select

Describe the solution you'd like

• Implement an autoComplete item control from the FHIR specification. This provides the ability to provide filter foward based on a set of inlined answer options (initially).
• Future iterations will provide support for referenced valueSets

Describe alternatives you've considered
None

Additional context
To be added

[Tarun-Bhardwaj]

@aditya-07 , estimated effort for this issue is 5 days.

[jingtang10]

@aditya-07 and I had a discussion today. We will be using a drop down list and chips (https://material.io/components/chips) and will focus on multiple choice questions to begin with.

[fredhersch]

@jingtang10 @aditya-07 Here is a mock for the basic filter forward scenario. For this scenario there is just 1 option selected. You can ignore the 'I need help'

For multiple options, this should align with the design for the multi-select drop down in issue #216. We should align the design for these. I'll take an action here

[fredhersch]

As discussed, let's stick with the filter forward with multiple chips as per your POC @aditya-07 . Looks awesome. Thanks

[aditya-07]

@fredhersch Do you have a questionnaire against which we can test the changes?