edk2: Add .clang-format file

Adds .clang-format file for developers to use to either use with their
development environments or automatically fix style errors according
to the UEFI coding guidelines.

Change-Id: Ib7a48ef0a25f907a0068f854a75115a7cb2c154c
diff --git a/.clang-format b/.clang-format
new file mode 100644
index 0000000..17b8c72
--- /dev/null
+++ b/.clang-format
@@ -0,0 +1,65 @@
+# Copyright (c) 2017, The Linux Foundation. All rights reserved.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions are
+# met:
+#   * Redistributions of source code must retain the above copyright
+#     notice, this list of conditions and the following disclaimer.
+#   * Redistributions in binary form must reproduce the above
+#     copyright notice, this list of conditions and the following
+#     disclaimer in the documentation and/or other materials provided
+#     with the distribution.
+#   * Neither the name of The Linux Foundation nor the names of its
+#     contributors may be used to endorse or promote products derived
+#     from this software without specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED "AS IS" AND ANY EXPRESS OR IMPLIED
+# WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+# MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT
+# ARE DISCLAIMED.  IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS
+# BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+# CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+# SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
+# BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
+# WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
+# OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN
+# IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+---
+Language:        Cpp
+
+# 5.1.1
+ColumnLimit:     80
+
+# 5.1.2
+IndentWidth:     2
+TabWidth:        2
+UseTab:          Never
+
+# 5.2.1.1
+AllowShortBlocksOnASingleLine: false
+AllowShortCaseLabelsOnASingleLine: false
+AllowShortFunctionsOnASingleLine: None
+AllowShortIfStatementsOnASingleLine: false
+AllowShortLoopsOnASingleLine: false
+
+# 5.2.1.3, 5.7.1.10
+BreakBeforeBraces: Linux
+
+# 5.2.2.2
+SpaceBeforeAssignmentOperators: true
+
+# 5.2.2.6
+SpaceBeforeParens: Always
+
+# 5.7.1.3
+AlwaysBreakAfterReturnType: All
+
+# 5.7.1.5
+IndentWrappedFunctionNames: false
+
+# 5.7.1.7
+AlignAfterOpenBracket: Align
+AllowAllParametersOfDeclarationOnNextLine: false
+BinPackParameters: false
+...