This file has instrument events and needs to be compiled
also for the instrumenting library.

- Use flag OMPTOOL_OPTS_LEND when appropriate
- Do not call some DLB functions if lewi is not enabled

Talp attach fixes

See merge request dlb/dlb!71

Remove some dead code.
Fix compound literal.

Update dlb_talp.h

Consistent declaration of the function-name with that from files:
<src>/apis/DLB_interface_talp.c and <src>/apis/dlbf_talp.h

Implement named barriers

Closes #197

See merge request dlb/dlb!70

close #197

[ci-skip]

[ci-skip]

According to man clock_gettime for CLOCK_MONOTONIC:
"successive calls may—depending on the architecture—return identical
(not-increased) time values."

Papi tweaks

See merge request dlb/dlb!68

Close #206

[ci-skip]

Implement function to get POP Node metrics from an external profiler

Closes #199

See merge request dlb/dlb!67

Close #199