Locking launching of widget during reinstallation/uninstallation

Locking launching of widget during reinstallation/uninstallation

[Issue#]   N_SE-55833
[Problem]  Installer should block launching widget during installation
[Cause]    N/A
[Solution] Reinstallation/deinstallation is making exclusive file lock on /tmp/.dpl_lock.[tizenId] file.
           Lock of this file is used to check by wrt-client if launching is possible.

[Remarks]
    - lock is destroyed if wrt-installer finished (destrcutor of std::unique_ptr<>)
    - lock is destroyed if wrt-installer crashed,
    - if file is already lock that means:
        - another installation of this widget is proceeded,
        - wrt-client check if it can launch -> wait for freeing

[SCMRequest]  This requires wrt-commons change: "[DPL] FileLock"
[Verification] N/A
    - try to run widget while widget is being resinstalled -> widget should not run (insert sleep code after kill runnign app),
    - try to run widget while widget is being uninstalled -> widget should not run,
    - install two different apps similtonously (both should be installed and able to be run)

Change-Id: Iedf3f954536d35085ae90eb3a58386abcab7f9ac