ErrorBarType API in JavaScript Chart API control

Defines the type of error bar. They are

• fixed - Renders a fixed type error bar.
• percentage - Renders a percentage type error bar.
• standardDeviation - Renders a standard deviation type error bar.
• standardError -Renders a standard error type error bar.
• custom -Renders a custom type error bar.
• Fixed
• Percentage
• StandardDeviation
• StandardError
• Custom