use main module in examples

Author: perazz

example/example_blas_gemv.f90

@@ -1,6 +1,5 @@
 program example_gemv
-  use la_eye, only: eye
-  use la_blas, only: sp,gemv
+  use linear_algebra, only: eye,sp,gemv
   implicit none(type,external)
   real(sp) :: A(2, 2), B(2)
   B = [1.0,2.0]

example/example_lapack_getrf.f90

@@ -1,6 +1,5 @@
 program example_getrf
-  use la_eye, only: eye
-  use la_lapack, only: dp,ilp,getrf
+  use linear_algebra, only: eye,dp,ilp,getrf
   implicit none(type,external)
   real(dp) :: A(3, 3)
   integer(ilp) :: ipiv(3),info

example/example_state1.f90

@@ -1,5 +1,5 @@
 program example_state1
-  use linear_algebra
+  use linear_algebra, only: la_state, LINALG_VALUE_ERROR, operator(==)
   implicit none
   type(la_state) :: err
 

fpm.toml

@@ -18,4 +18,3 @@ source-form = "free"
 source-dir="src"
 [preprocess]
 [preprocess.cpp]
-###macros = ["STDLIB_EXTERNAL_BLAS","STDLIB_EXTERNAL_LAPACK"]