Add clang format for C and C++

The libpldmoem is written in C and can be shared with projects other than
OpenBMC. The code is written in C and follows the Linux kernel coding guidelines.
The libpldmoemresponder will be written in modern C++ and the clang format
follows the OpenBMC coding guidelines.

clang-format for each input file will try to find the .clang-format file
located in the closest parent directory of the input file. Since the C code is
in libpldm directory it has a specific .clang-format.

Change-Id: Iedc56073d75acd0731c8537f165dde91bfa6c4e6
Signed-off-by: Tom Joseph <tomjoseph@in.ibm.com>
2 files changed