Merge version 0.2.7

Fixes situations in which a workspace of N CEs get some compound with less than N MS2

See merge request !30

* R/run.R(proj_sp_comb): Updated combine to ignore those compounds in
  the spectra objects which have length(children)<1.

Fix collision energy labels in records as well as the record names

See merge request !29

Many different changes that together fix the record indices writeout.

* R/base.R(rmb_future): New function that serves as a wrapper around
  the future::future call. It populates the environment for the future
  call in such way that it is RMassBank compatible.

Devel

See merge request !28

* run.R(proj_sp_readin): Fixed creation of ws with new ce_index
  column.

(proj_sp_comb): Follow consistent scheme when indexing CEs. Also, keep
a reference to the original precursor. Will put it in the comment
later.

(proj_sp_ana2): Load the settings and the compound list in
futures. This is not consisten in all the steps of the workflow, but
we should do it.

(step_1_helpr): Load settings.

(proj_mb_rec_entries): Reformat the record so that it passes the
validator. Move most of the stuff to COMMENT fields.

This is a revert of the previous commit, as it is clear that right
now, it makes no sense to have built-in index naming schemes. The
record naming scheme of MassBank is to inflexible for this.

* R/config.R(CE_INDEX_SCHEME): New constant with standard collision
  energy indices, used to derive the MassBank names.

* R/run.R(proj_sp_new): New argument ce_index_scheme which defaults to
  CE_INDEX_SCHEME.

* R/run.R(proj_sp_comb): Rewrite only the acquisition number, not the
  intensity, nor mz.

* R/run.R(proj_mb_info): Parallelised.

* R/run.R(proj_sp_comb): Started rebasing MS2 spectra precursor on the
  one with maximum intensity.

* R/run.R (proj_mb_comp): New function. This is a new step in the
  workflow, to be executed after proj_mb_info and before
  proj_mb_rec_entries. It makes compilation quicker.

To add QC

Fix the fix

See merge request !25