Add selectionHandleColor prop on TextInput (facebook#4248)

* add selectionHandleColor to TextInput

* add selectionHandleColor to TextInput on versioned docs

* add missing type

* add selecitonHandleColor to v0.76

Author: jakex7

docs/textinput.md

@@ -817,7 +817,17 @@ The start and end of the text input's selection. Set start and end to the same v
 
 ### `selectionColor`
 
-The highlight and cursor color of the text input.
+The highlight, selection handle and cursor color of the text input.
+
+| Type               |
+| ------------------ |
+| [color](colors.md) |
+
+---
+
+### `selectionHandleColor` <div class="label android">Android</div>
+
+Sets the color of the selection handle. Unlike `selectionColor`, it allows the selection handle color to be customized independently of the selection's color.
 
 | Type               |
 | ------------------ |

website/versioned_docs/version-0.74/textinput.md

@@ -800,7 +800,17 @@ The start and end of the text input's selection. Set start and end to the same v
 
 ### `selectionColor`
 
-The highlight and cursor color of the text input.
+The highlight, selection handle and cursor color of the text input.
+
+| Type               |
+| ------------------ |
+| [color](colors.md) |
+
+---
+
+### `selectionHandleColor` <div class="label android">Android</div>
+
+Sets the color of the selection handle. Unlike `selectionColor`, it allows the selection handle color to be customized independently of the selection's color.
 
 | Type               |
 | ------------------ |

website/versioned_docs/version-0.75/textinput.md

@@ -800,7 +800,17 @@ The start and end of the text input's selection. Set start and end to the same v
 
 ### `selectionColor`
 
-The highlight and cursor color of the text input.
+The highlight, selection handle and cursor color of the text input.
+
+| Type               |
+| ------------------ |
+| [color](colors.md) |
+
+---
+
+### `selectionHandleColor` <div class="label android">Android</div>
+
+Sets the color of the selection handle. Unlike `selectionColor`, it allows the selection handle color to be customized independently of the selection's color.
 
 | Type               |
 | ------------------ |

website/versioned_docs/version-0.76/textinput.md

@@ -817,7 +817,17 @@ The start and end of the text input's selection. Set start and end to the same v
 
 ### `selectionColor`
 
-The highlight and cursor color of the text input.
+The highlight, selection handle and cursor color of the text input.
+
+| Type               |
+| ------------------ |
+| [color](colors.md) |
+
+---
+
+### `selectionHandleColor` <div class="label android">Android</div>
+
+Sets the color of the selection handle. Unlike `selectionColor`, it allows the selection handle color to be customized independently of the selection's color.
 
 | Type               |
 | ------------------ |