Add README and code generation scripts

gen/generate.jl

@@ -0,0 +1,20 @@
+using Clang
+
+if "CPLEX_INCLUDE_DIR" ∉ keys(ENV)
+    error("CPLEX_INCLUDE_DIR must be defined")
+end
+
+CPLEX_INCLUDE_DIR = ENV["CPLEX_INCLUDE_DIR"]
+
+mkpath("output")
+context = Clang.init(
+    headers=["$CPLEX_INCLUDE_DIR/cpxconst.h", "$CPLEX_INCLUDE_DIR/cplex.h"],
+    common_file="commons.jl",
+    output_dir="output",
+    clang_includes=vcat(CPLEX_INCLUDE_DIR, LLVM_INCLUDE),
+    clang_args = ["-I", CPLEX_INCLUDE_DIR],
+    clang_diagnostics=true,
+    header_wrapped=(header, cursorname) -> header == cursorname,
+    header_library=header_name -> "libcplex"
+)
+Clang.run(context)