Extend Unit Preasure

[schulz3000]

Add additional prefixes to Pascal and Bar

[angularsen]

Any particular reason why Milli and Centi is left out? I don't know what prefixes are commonly used with Pascal.

[schulz3000]

Of course it's possible to convert it to Milli and Centi but I never see it in the wild. In my company we we are working lot with measuring of preasure. There I also never see a device that use MilliPascal or CentiPascal.
As source in the internet I only find a german wiki entry where you can also find these prefixes: http://de.wikipedia.org/wiki/Pascal_(Einheit)

[angularsen]

Ok, good enough for me.

You need to fix that compile error in the test project though. Basically implement the new test values in PressureTests.cs. The wiki on adding new units explains this for your reference.

Build log:
http://dev.swingcatalyst.com/TeamCity/viewLog.html?buildId=22246&buildTypeId=UnitsNet

Let me know when it's fixed and I'm ready to merge this in.

[schulz3000]

@anjdreas Unittests are fixed

[angularsen]

Looks good, thanks!