[#97] Added README per module

Signed-off-by: Tobias Frisch <tfrisch@uni-koblenz.de>

modules/asset_loader/README.md

+# Asset-Loader
+
+A VkCV module to load basic assets like models, materials and images
+
+## Build
+
+### Dependencies (required):
+
+| Name of dependency | Used as submodule |
+|----------------------------------------------------|---|
+| [fx-gltf](https://github.com/jessey-git/fx-gltf)   | ✅ |
+| [nlohmann::json](https://github.com/nlohmann/json) | ✅ |
+| [stb](https://github.com/nothings/stb)             | ✅ |

modules/camera/README.md

+# Camera
+
+A VkCV module to manage cameras and their handle view and projection matrices
+
+## Build
+
+### Dependencies (required):
+
+| Name of dependency | Used as submodule |
+|----------------------------------------------------|---|
+| [GLM](https://github.com/g-truc/glm)   | ✅ |

modules/gui/README.md

+# GUI
+
+A VkCV module to integrate GUI rendering to your application as additional pass
+
+## Build
+
+### Dependencies (required):
+
+| Name of dependency | Used as submodule |
+|----------------------------------------------------|---|
+| [ImGUI](https://github.com/ocornut/imgui/)   | ✅ |

modules/material/README.md

+# GUI
+
+A VkCV module to abstract typical kinds of materials for rendering

modules/scene/README.md

+# GUI
+
+A VkCV module to load and manage a scene, simplify its rendering and potentially optimize it

modules/shader_compiler/README.md

+# Shader-Compiler
+
+A VkCV module to compile shaders at runtime
+
+## Build
+
+### Dependencies (required):
+
+| Name of dependency | Used as submodule |
+|----------------------------------------------------|---|
+| [Glslang](https://github.com/KhronosGroup/glslang/)   | ✅ |