[nostalgia] Switch from conan to vcpkg

conanfile.py

@@ -1,9 +0,0 @@
-from conans import ConanFile, CMake
-
-class NostalgiaConan(ConanFile):
-    settings = "os", "compiler", "build_type", "arch"
-    requires = "jsoncpp/1.9.2", "sdl2/2.0.10@bincrafters/stable"
-    generators = "cmake", "cmake_find_package", "cmake_paths"
-    #default_options = {
-    #    "sdl2:nas": False
-    #}