Improve batch files to support path contains white space

Issue

Mobius batch files( like .cmd/.bat ) does not support path contains special character like (white space).

Repro/Example

Rename your folder local Mobius to has a space or move it into a directory that full path contains space.
Then run build\localmode\RunSamples.cmd will fail at load-spark-env.cmd

Another way to repro it like following : will get error at compilation :

git clone https://github.com/Microsoft/Mobius  "space Mobius"
cd "space Mobius"
build\Build.cmd

Additional

To easy check and list all the potential batch files can use a tool in testMobius
lzmw -l -f "\.(cmd|bat)$" -rp .
lzmw -l -f "\.(cmd|bat)$" -rp . --nd "^(testMobius|target|packages)$|maven" --np "build.tools.(spark-\d+|apache)"

This will be postponed as current spark doesn't support path has white spaces
Will follow it and activate this if spark support this.