cmake: add cmake module to find libfido2

Signed-off-by: Praneeth Sarode <praneethsarode@gmail.com>
Reviewed-by: Jakub Jelen <jjelen@redhat.com>
Reviewed-by: Eshan Kelkar <eshankelkar@galorithm.com>

cmake/Modules/Findlibfido2.cmake

@@ -0,0 +1,63 @@
+# - Try to find libfido2
+# Once done this will define
+#
+#  LIBFIDO2_ROOT_DIR - Set this variable to the root installation of libfido2
+#
+# Read-Only variables:
+#  LIBFIDO2_FOUND - system has libfido2
+#  LIBFIDO2_INCLUDE_DIR - the libfido2 include directory
+#  LIBFIDO2_LIBRARIES - Link these to use libfido2
+#
+# The libfido2 library provides support for communicating
+# with FIDO2/U2F devices over USB/NFC.
+#
+#  Copyright (c) 2025 Praneeth Sarode <praneethsarode@gmail.com>
+#
+#  Redistribution and use is allowed according to the terms of the New
+#  BSD license.
+#  For details see the accompanying COPYING-CMAKE-SCRIPTS file.
+#
+
+
+set(_LIBFIDO2_ROOT_HINTS
+    $ENV{LIBFIDO2_ROOT_DIR}
+    ${LIBFIDO2_ROOT_DIR}
+)
+
+set(_LIBFIDO2_ROOT_PATHS
+    "$ENV{PROGRAMFILES}/libfido2"
+)
+
+set(_LIBFIDO2_ROOT_HINTS_AND_PATHS
+    HINTS ${_LIBFIDO2_ROOT_HINTS}
+    PATHS ${_LIBFIDO2_ROOT_PATHS}
+)
+
+find_path(LIBFIDO2_INCLUDE_DIR
+    NAMES
+        fido.h
+    HINTS
+        ${_LIBFIDO2_ROOT_HINTS_AND_PATHS}
+    PATH_SUFFIXES
+        include
+)
+
+find_library(LIBFIDO2_LIBRARY
+    NAMES
+        fido2
+    HINTS
+        ${_LIBFIDO2_ROOT_HINTS_AND_PATHS}
+    PATH_SUFFIXES
+        lib
+        lib64
+)
+
+set(LIBFIDO2_LIBRARIES
+    ${LIBFIDO2_LIBRARY}
+)
+
+include(FindPackageHandleStandardArgs)
+find_package_handle_standard_args(libfido2 DEFAULT_MSG LIBFIDO2_LIBRARIES LIBFIDO2_INCLUDE_DIR)
+
+# show the LIBFIDO2_INCLUDE_DIR and LIBFIDO2_LIBRARIES variables only in the advanced view
+mark_as_advanced(LIBFIDO2_INCLUDE_DIR LIBFIDO2_LIBRARIES)