move more helpers to pbs-tools

Signed-off-by: Wolfgang Bumiller <w.bumiller@proxmox.com>

pbs-tools/Cargo.toml

@@ -8,12 +8,15 @@ description = "common tools used throughout pbs"
 # This must not depend on any subcrates more closely related to pbs itself.
 [dependencies]
 anyhow = "1.0"
+base64 = "0.12"
 libc = "0.2"
 nix = "0.19.1"
 nom = "5.1"
 openssl = "0.10"
+percent-encoding = "2.1"
 regex = "1.2"
 serde = "1.0"
 serde_json = "1.0"
+url = "2.1"
 
 proxmox = { version = "0.11.5", default-features = false, features = [] }