Special character in filename/path not escaped in id, when using `ROCrate(init=True)`

[LauLauThom]

I have installed the rocrate package from the github URL so I have the version of the last commit, so including the fixes in this past PR #217.

Still I think the special characters (spaces..) in the filename or path are not escaped/quoted, when a crate is created from an existing directory, containing files with such characters.

Here is an example reproducing the issue.

from rocrate.rocrate import ROCrate
import os

new_crate_root = "./test_crate"

# create a directory with a single text file
if not os.path.exists(new_crate_root):
    os.mkdir(new_crate_root)

# create a file with spaces in the name
with open(os.path.join(new_crate_root, "file with space.txt"), "w") as f:
    f.write("empty")

# Initialize a crate from the directory and save it to create the json
crate = ROCrate(new_crate_root, init=True)
crate.write(new_crate_root) 

# then reload it, this time parsing it
crate = ROCrate(new_crate_root)
file1 = crate.get_by_type("File")[0]

print(f"{file1.id=}") #  missing the % !
assert "%" in file1.id 

I believe the quoting happens in all other cases (see below).
But when init=True in the ROCrate constructor then crate.source evaluate to True and the identifier is not quoted.

ro-crate-py/rocrate/model/file_or_dir.py

Lines 48 to 49 in ae7d12e

	if not crate.source:
	identifier = quote(identifier)