Add borg check and rename options

Because we added borg check functionality, some of the Options have been
renamed:
-C -> -V
-E -> -e (as it is a sub)

-C: check
-y: --verify-data
-p: prefix or glob for check

Internal variables with CHECK have been renamed or changed to VERIFY

Borg -C without any extra parameters is equal to borg check.
-y adds the --verify-data and -p is a mix of the -P and -a options. If
there is a "*" in the option then -a will be used, else -P

Note that repair command has to be run manually. Run -C with -v
(verbose) to see the repair command structure.

borg check can take a long time on very large repositories.

borg.backup.file.sh

@@ -1,11 +1,10 @@
 #!/usr/bin/env bash
 
-# Run -I first to initialize repository
-# There are no automatic repository checks unless -C is given
+# Plain file backup
 
 # set last edit date + time
 MODULE="file";
-MODULE_VERSION="1.2.0";
+MODULE_VERSION="1.2.1";
 
 DIR="${BASH_SOURCE%/*}"
 if [[ ! -d "$DIR" ]]; then DIR="$PWD"; fi
@@ -14,10 +13,11 @@ if [[ ! -d "$DIR" ]]; then DIR="$PWD"; fi
 # include and exclude file
 INCLUDE_FILE="borg.backup.file.include";
 EXCLUDE_FILE="borg.backup.file.exclude";
-# init check file
-BACKUP_INIT_CHECK="borg.backup.file.init";
+# init verify file
+BACKUP_INIT_VERIFY="borg.backup.file.init";
 
-. "${DIR}/borg.backup.functions.check.sh";
+# verify valid data
+. "${DIR}/borg.backup.functions.verify.sh";
 
 # exit if include file is missing
 if [ ! -f "${BASE_FOLDER}${INCLUDE_FILE}" ]; then