state store: call-out to generic update of job recommendations from job update method
recommendations API work, and http endpoint errors for OSS
support for scaling polices in task block of job spec
add query filters for ScalingPolicy list endpoint
command: nomad scaling policy list: added -job and -type

Apparently `\` followed by a digit number can cause hcl parser to panic!
Will fix in hcl library, but using a hammer to squash any similar issue
here.

- read-job-scaling
- scale-job
- list-scaling-policies
- read-scaling-policy

updated the read and right policy dispositions, added the new autoscaler disposition

* acl/policy: add PolicyList for global ACLs

* acl/acl: plugin policy

* acl/acl: maxPrivilege is required to allow "list"

* nomad/csi_endpoint: enforce plugin access with PolicyPlugin

* nomad/csi_endpoint: check job ACL swapped params

* nomad/csi_endpoint_test: test alloc filtering

* acl/policy: add namespace csi-register-plugin

* nomad/job_endpoint: check csi-register-plugin ACL on registration

* nomad/job_endpoint_test: add plugin job cases

* acl/policy: add the volume ACL policies

* nomad/csi_endpoint: enforce ACLs for volume access

* nomad/search_endpoint_oss: volume acls

* acl/acl: add plugin read as a global policy

* acl/policy: add PluginPolicy global cap type

* nomad/csi_endpoint: check the global plugin ACL policy

* nomad/mock/acl: PluginPolicy

* nomad/csi_endpoint: fix list rebase

* nomad/core_sched_test: new test since #7358

* nomad/csi_endpoint_test: use correct permissions for list

* nomad/csi_endpoint: allowCSIMount keeps ACL checks together

* nomad/job_endpoint: check mount permission for jobs

* nomad/job_endpoint_test: need plugin read, too

This adds an initial implementation of ACLs for HostVolumes.

Because HostVolumes are a cluster-wide resource, they cannot be tied to
a namespace, thus here we allow similar wildcard definitions based on
their names, tied to a set of capabilities.

Initially, the only available capabilities are deny, or mount. These
may be extended in the future to allow read-fs, mount-readonly and
similar capabilities.

This adds `alloc-exec` capability to allow operator to execute command into a
running task.  Furthermore, it adds `alloc-node-exec` capability, required when
the alloc task is raw_exec or a driver with no FSIsolation.

This capability will gate access to features that allow interacting with
a running allocation, for example, signalling, stopping, and rescheduling
specific allocations.