Add option --no-capacity-checks to hspace
Add option --no-capacity-checks to hspace

While it is generally a good idea to plan capacity to have a redundant
cluster, there are legitimate use cases, where we want to know how many
instances can be squeezed on the cluster at all, taking only N+1 redundancy
for DRBD into account. So add an option restoring the old behavior.

Signed-off-by: Klaus Aehlig <4ce51de36d9068cd7db2eec1151e0f3f95419008@google.com>
Reviewed-by: Petr Pudlak <9d19625f8ee825a2c398462ed335cbcf98f79c32@google.com>

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