Added some httpd utils

CMakeLists.txt

@@ -0,0 +1,38 @@
+set(headers
+    src/esphttpdutils.h
+)
+
+set(sources
+    src/esphttpdutils.cpp
+)
+
+set(dependencies
+    esp_http_server
+    nghttp
+
+    cpputils
+    espchrono
+    espcpputils
+    expected
+    fmt
+)
+
+idf_component_register(
+    INCLUDE_DIRS
+        src
+    SRCS
+        ${headers}
+        ${sources}
+    REQUIRES
+        ${dependencies}
+)
+
+target_compile_options(${COMPONENT_TARGET}
+    PRIVATE
+        -fstack-reuse=all
+        -fstack-protector-all
+        -Wno-unused-function
+        -Wno-deprecated-declarations
+        -Wno-missing-field-initializers
+        -Wno-parentheses
+)