Update CSSProperties.json

Added background-blend-mode CSS property.
Add skeleton of zh-tw translation.
[WIP] Translate strings.js into Traditional Chinese.
added .bash to bash syntax highlighting and .ino to cpp syntax highlighting
Translation in progress.
Translation in progress.
Translation in progress.
Complete zh-tw strings.js.
Copied url.js from en locale.
Update CC BY 3.0 link to zh-TW localized version.
Copied "Getting Started" from en locale.
Getting Started page translation in progress.
Uses Traditional Chinese fonts.
Translated "get involved" section.
Change the style of em from italic to bold.
Since italic is not ideal for non-Roman alphabets.
Complete "Getting Started" translation.
Increase font weight in h* for Chinese.
Translate contacts.
Refine translations in "Get Involved" section.
Fix h# duplicated font-weight problem, adjust b, strong style.
Refine translation.