Enable auto EOL on git repo side, fix some character encoding issues (#4912)

- add ending newline to files missing it using:
`awk -F: '$2 ~ / no line terminators/ {print $1}' ~/text-files.txt | xargs -I{} sh -c 'printf "\n" >> "$1"' - {}`
- update .gitattributes to enforce autocrlf on all text files
- added <copyright> opening element where it was missing
removed file attribute pointing to wrong filename
- fix mis-encoded character to apostrophe
- replace incorrect encoding of copyright symbol with (c)
- updated file hashes in the test

test/powershell/Modules/Microsoft.PowerShell.Security/TestData/CatalogTestData/TestFileCatalog.txt

@@ -1 +1 @@
-Text File to test catalog
+Text File to test catalog