add pkg-desc' and pkg-authors' to each package

This information will be used to construct a catalog from the
package directories.

original commit: 057bfc2ea1a24e85ece2d5f85da30076643ea598

pkgs/profile-pkgs/profile-doc/info.rkt

@@ -6,3 +6,7 @@
                      "scribble-lib"
                      "profile-lib"
                      "racket-doc"))
+
+(define pkg-desc "documentation part of \"profile\"")
+
+(define pkg-authors '(eli))

pkgs/profile-pkgs/profile-lib/info.rkt

@@ -4,3 +4,7 @@
 (define deps '("base"))
 (define build-deps '("at-exp-lib"
                      "rackunit-lib"))
+
+(define pkg-desc "implementation (no documentation) part of \"profile\"")
+
+(define pkg-authors '(eli))

pkgs/profile-pkgs/profile-test/info.rkt

@@ -5,3 +5,7 @@
 (define build-deps '("base"
                      "eli-tester"
                      "profile-lib"))
+
+(define pkg-desc "tests for \"profile\"")
+
+(define pkg-authors '(eli))

pkgs/profile-pkgs/profile/info.rkt

@@ -6,3 +6,7 @@
                "profile-doc"))
 (define implies '("profile-lib"
                   "profile-doc"))
+
+(define pkg-desc "Libraries for statistical performance profiling")
+
+(define pkg-authors '(eli))