build: Use Arch Docker file to its own folder

dist/Arch/Dockerfile

@@ -0,0 +1,28 @@
+FROM archlinux:latest
+
+LABEL maintainer="hey@werwolv.net WerWolv"
+
+# Install dependencies
+RUN pacman -Syy --needed --noconfirm
+RUN pacman -S --needed --noconfirm      \
+    git                                 \
+    cmake                               \
+    base-devel                          \
+    gcc                                 \
+    pkg-config                          \
+    glfw-x11                            \
+    file                                \
+    mbedtls                             \
+    freetype2                           \
+    curl                                \
+    dbus                                \
+    xdg-desktop-portal
+
+# Clone ImHex
+RUN git clone https://github.com/WerWolv/ImHex --recurse-submodules /root/ImHex
+
+# Build ImHex
+RUN mkdir /root/ImHex/build
+WORKDIR /root/ImHex/build
+RUN cmake .. && make -j
+WORKDIR /root/ImHex