KRACOEUS-7012 basic certification functionality

This is related to https://github.com/kuali/kc/pull/317 .... I was unable to successfully squash merge those commits,   This code represents basic proposal certification functionality
So I was thinking something different. In the ProposalPersonnelController you should be able to do this in a method with the following annotation on it.

```
@RequestMapping(value = "/proposalDevelopment", params={"methodToCall=navigate", "pageId=PropDev-PerosnnelPage")
```
and
```
@RequestMapping(value = "/proposalDevelopment", params={"methodToCall=save", "pageId=PropDev-PerosnnelPage")
```
Does that not work? Related don't put PD specific constants in the global constants file. Either use or create a PD specific constants file for that. And you should be able to use a constant in the annotation as well.