Initial commit for phosphor certificate manager

Certificate management application allows to replace the
existing certificate and private key file with another
(possibly CA signed Certificate and private key file.

Change-Id: I1129cc92ca4aae5f84cb304dda9073cc74781009
Signed-off-by: Jayanth Othayoth <ojayanth@in.ibm.com>
diff --git a/.gitignore b/.gitignore
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index 0000000..c6198f6
--- /dev/null
+++ b/.gitignore
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+# Template from:
+# https://github.com/github/gitignore/blob/master/Autotools.gitignore
+
+# http://www.gnu.org/software/automake
+
+Makefile.in
+/ar-lib
+/mdate-sh
+/py-compile
+/test-driver
+/ylwrap
+
+# http://www.gnu.org/software/autoconf
+
+/autom4te.cache
+/aclocal.m4
+/compile
+/config.guess
+/config.h.in
+/config.sub
+/configure
+/configure.scan
+/depcomp
+/install-sh
+/missing
+/stamp-h1
+
+# https://www.gnu.org/software/libtool/
+
+/ltmain.sh
+
+# http://www.gnu.org/software/texinfo
+
+/texinfo.tex
+
+# Repo Specific Items
+*.o
+*.trs
+/config.h
+/config.h.in~
+*.log
+/config.status
+Makefile
+.deps
+*-libtool
+/phosphor_certificate_manager