Fixes #2208 Card Layout Implemented for Generate Config Layout

[kartikaysharma01]

Fixes #2208
Fixes #2181

Changes:

1. Added Card Views for Instrument and Time Interval Sections on Generate Config Screen
2. Regularized the layout

Screenshot/s for the changes:

Checklist: [Please tick following check boxes with [x] if the respective task is completed]

• I have used resources from strings.xml, dimens.xml and colors.xml without hard-coding them
• No modifications done at the end of resource files strings.xml, dimens.xml or colors.xml
• I have reformatted code in every file included in this PR [CTRL+ALT+L]
• My code does not contain any extra lines or extra spaces
• I have requested reviews from other members

APK for testing: [Compress the app-debug.apk file into a <feature>.rar or <feature>.zip file and upload it here]
generate-config-layout.zip

[kartikaysharma01]

#2188
To convert logging interval units as slider, I tried using NumberPicker but that is not space feasible in our case.

Another Option was to give more layout weight to spinner but that is a temporary fix as the default vast space between textview and drop down icon makes the fix screen-size dependent. (picture attached)

I have left the logging interval unit situation as it was before, my suggestion is we make a custom background for spinner with close textview and drop down icon.

A better approach suggestion for slider effect is also welcome.

PS :- @CloudyPadmal