Fix skipping of relative paths and lost+found in twrpDU

Change-Id: Ib79029fd6237502338b041a6bc2f9e539536d6ad
Signed-off-by: Vojtech Bocek <vbocek@gmail.com>
Improve handling of settings storage and android secure

Change-Id: I8af92543c2f0c201e7220267c417d74e4561038d
Change to lstat so we don't count the target of symbolic links as part
of the tar archive size. Big thanks to Tassadar for pointing out the
fix.

Change-Id: I8894ffef54c93939b5b455634169d9c14d8ed7af
Re-arrange handling of settings storage partition

Sometimes we received an error about being unable to locate
storage partition because the DataManager would attempt to access
the PartitionManager before we finished adding the storage
partitions to the vector.

Change-Id: I0ce1778938d308b1eb17de46a192ecd52489cad3