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[OriAmir]

• Add video support, now the gallery supports 2 types of media - image and video, the video element contains all the options the image has.
• Lightbox support in the video element.
• Add a callback function called onClick when clicking on a media element.
• Change library variables names and functions to be align with both image and video.
• Update all package dependencies to their latest version.
• Fix some bugs relate to media style/className props.

Breaking change

Gallery options:

• Rename images prop to media.
• Rename numOfImagesPerRow prop to numOfMediaPerRow.
• Rename imageMaxWidth prop to mediaMaxWidth.
• Rename imagesPaddingBottom prop to mediaPaddingBottom.
• Rename imagesStyle prop to mediaStyle.
• Rename selectableItems prop to selectableMedia.
• Rename mediaPaddingBottom to mediaMarginBottom

Media(Image previously) options:

• Add type prop - could be image or video where the default is image.
• Add mediaStyle prop to support the style object for the specific media element .
• Add videoType prop to support style object for specific media element .
• Add additionalVideoProps prop to get more video properties.
• Rename imgClassName prop to mediaClassName.