v1.2.0: Lapack version updates (#18)

* unghr gehrd hsein unmhr hseqr trevc gebak geev

* formatting

* remove duplicate ungqr and add is

* missing braket

* hsein and hseqr fix

* hseqr fix

* lapack version upgrade

* &mm to mm

* ihi and iho updates

* update pointers to ref

* lapack update changes

* update lapack to v0.3.0