refactor(treewide): Improve code quality by working with a FileTree

The FileTree has been taken from the implementation written by my for the
Trinitrix project. It alleviates the problem, where functions had to do
many things themselves.

1 files changed, 594 insertions, 1 deletions

diff --git a/Cargo.lock b/Cargo.lock
index 9d8cd04..3bb0abf 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -3,5 +3,598 @@
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