Release to V3 (#82)

* #75 iOS Initalization added

* release preparations

* Feature/experimental/checkbox (#79)

* IconView can render from streams now and Source changed to ImageSource

* CheckBox updated with custom images

* CheckBox unnecessary types removed

* Animators Added

* Animators implemented to CheckBox & RadioButton

* included all files under folders on csproj

* RadioButtonGroupView seperated from RadioButton

* #57 RadioButton Vertical Text Alignment Fix

* CheckBox VisualStates added

* all controls made as partial & code cleanup

* Android Init added

* Xamarin Forms Dependency set as v3.2.0.839982

* Sample App Updated for Checkboxes & RadioButtons

* Sample App Updated

* iOS suggestions work (#83)

* AndvancedEntry TextFonSize added and code-cleanup

* AutoComplete iOS positioning problem solved

* iOS AutoCompleteView Initalization properties added

* merged from develop (#86)

* AutoComplete Entry Update (#84)

* Initalization of AutoCompleteEntry

* iOS suggestions view fix

* AutoCompleteRenderer iOS ItemsSource fix

* AutoCompleteEntry added to Shared Layer

* AutoCompleteEntry portable improvements

* Sample App Updated For AutoCompleteEntry

* iOS Suggestions positioning fix

* AutoCompleteEntry validation works now

* android autoCompleteEntry initalization properties applied.
still working on iOS

* screenshots updated

* Sample App Updated

* Readme & Sample Update

* CheckBox Coloring problem when default selected initalized problem fix

* Animator removed. Actions property added instead of.

* Init methods update for linker ( #87 )

* added netstandard10 support [ #87 )

* changed AnnotationType of AdvancedEntry to regex

* some .NetStandard 2.0 features ignored on .NetStandard 1.0  ( #87 )

* pre-release 7

* Resources moved to shared layer & code cleanup

* old project removed

* regex patterns fix

* Resources fully moved to binary as Embed Resource

* Plugin.CurrentActivity dependency removed

* Plugin.CurrentActivity removed from SampleApp

* Dropdown Fixes (#88)

* Changed dropdown text color

* FIx for ios

* Fixed text color, corner radius and removed shadow

* Fix for ios crash

* Fixed displaying dropdown options

* Fixed displaying dropdown options

* AnnotationMessaged moved to bottom of AdvancedEntry

* Code Review of #88

* UWP Build Support added

* RadioButtonGroupView Selection with boxed values bug fix

Author: enisn