Bugfix: [LDC-623] Change max multiple value for field tags

## Ready State: Yes

#### JIRA Reference: https://imagex.atlassian.net/browse/LDC-623

Change max multiple value for field tags

## Deployment Instructions

* Merge code.
* `drush fr imagex_vocabulary_tags -y` or Install new version linux profile
* Clear caches with `drush cache-clear all`

## Usage/Test Instructions

* Open `field_tags` settings
* Create node type News, filled fied Tags