xilinx: added bistream writer

Author: lromor

fpga/xilinx/BUILD

@@ -235,7 +235,7 @@ cc_library(
 cc_test(
     name = "bitstream-reader_test",
     srcs = [
-        "bitstream-reader_test.cc",
+        "bitstream-reader-xc7_test.cc",
     ],
     deps = [
         ":arch-types",
@@ -244,3 +244,41 @@ cc_test(
         "@googletest//:gtest_main",
     ],
 )
+
+cc_library(
+    name = "bitstream-writer",
+    srcs = [
+        "bitstream-writer.cc",
+    ],
+    hdrs = [
+        "bitstream-writer.h",
+    ],
+    deps = [
+        ":arch-types",
+        ":arch-xc7-configuration-packet",
+        ":bit-ops",
+        ":configuration-packet",
+        "@abseil-cpp//absl/log:check",
+        "@abseil-cpp//absl/strings",
+        "@abseil-cpp//absl/time",
+        "@abseil-cpp//absl/types:optional",
+        "@abseil-cpp//absl/types:span",
+    ],
+)
+
+cc_test(
+    name = "bitstream-writer_test",
+    srcs = [
+        "bitstream-writer_test.cc",
+    ],
+    deps = [
+        ":arch-types",
+        ":arch-xc7-configuration-packet",
+        ":bit-ops",
+        ":bitstream-writer",
+        ":configuration-packet",
+        "@abseil-cpp//absl/types:span",
+        "@googletest//:gtest",
+        "@googletest//:gtest_main",
+    ],
+)