Fix *.props files usage across all projects

- [x] Merge common properties for all VSFilter projects
- [x] Remove redundant properties in VSFilter.props (i.e. already set in common.props), and make use of common.props in VSFilter projects
- [x] Use common.props where possible in other projects (like test, gtest and log4cplus)
- [x] Remove redundant properties in projects that already use common.props (and some properties with the default values)