add model build internal

Author: henilp105

src/fpm_command_line.f90

@@ -134,6 +134,7 @@ module fpm_command_line
     logical :: show_upload_data = .false.
     logical :: is_dry_run = .false.
     character(len=:), allocatable :: token
+    character(len=:),allocatable  :: dump_model
 end type
 
 character(len=:),allocatable :: name
@@ -722,6 +723,7 @@ subroutine get_command_line_settings(cmd_settings)
             & show_model=lget('show-model'),&
             & build_tests=lget('tests'),&
             & verbose=lget('verbose'),&
+            & dump_model = 'fpm_model.json',&
             & token=token_s)
 
         case default