Bug 544642: New & Noteworthy page for Eclipse 2019-03 Release train

Added N&N for EGit, JGit and Wild web developer.
Added count of particpating projects.

Change-Id: I2c11ffd0cf60b1d2f7b1f5c7bb041ce048e1142f
Signed-off-by: Lakshmi Shanmugam <lshanmug@in.ibm.com>