Move most of the net collection out of the core.

- Most units and signatures from the `net` collection
  are now in `compatibility-lib`.
- Most of the actual libraries are in the `net-lib`
  package.

original commit: 2b1fb036c63639bc5dbb65348c4f4e5802c95b53

pkgs/compatibility-pkgs/compatibility-lib/info.rkt

@@ -1,3 +1,3 @@
 #lang setup/infotab
 (define collection 'multi)
-(define deps '("base"))
+(define deps '("base" "net-lib"))

pkgs/compatibility-pkgs/compatibility-lib/net/base64-unit.rkt

@@ -1,7 +1,7 @@
 #lang racket/base
 
 (require racket/unit
-         "base64-sig.rkt" "base64.rkt")
+         "base64-sig.rkt" net/base64)
 
 (define-unit-from-context base64@ base64^)
 

pkgs/compatibility-pkgs/compatibility-lib/net/cgi-unit.rkt

@@ -1,7 +1,7 @@
 #lang racket/base
 
 (require racket/unit
-         "cgi-sig.rkt" "cgi.rkt")
+         "cgi-sig.rkt" net/cgi)
 
 (define-unit-from-context cgi@ cgi^)
 

pkgs/compatibility-pkgs/compatibility-lib/net/cookie-unit.rkt

@@ -1,7 +1,7 @@
 #lang racket/base
 (require racket/unit
          "cookie-sig.rkt"
-         "cookie.rkt")
+         net/cookie)
 
 (define-unit-from-context cookie@ cookie^)
 

pkgs/compatibility-pkgs/compatibility-lib/net/dns-unit.rkt

@@ -1,7 +1,7 @@
 #lang racket/base
 
 (require racket/unit
-         "dns-sig.rkt" "dns.rkt")
+         "dns-sig.rkt" net/dns)
 
 (define-unit-from-context dns@ dns^)
 

pkgs/compatibility-pkgs/compatibility-lib/net/ftp-unit.rkt

@@ -5,7 +5,7 @@
 ;;   Micah Flatt
 ;;   06-06-2002
 (require racket/unit
-         "ftp-sig.rkt" "ftp.rkt")
+         "ftp-sig.rkt" net/ftp)
 
 (define-unit-from-context ftp@ ftp^)
 

pkgs/compatibility-pkgs/compatibility-lib/net/head-unit.rkt

@@ -1,7 +1,7 @@
 #lang racket/base
 
 (require racket/unit
-         "head-sig.rkt" "head.rkt")
+         "head-sig.rkt" net/head)
 
 (define-unit-from-context head@ head^)
 

pkgs/compatibility-pkgs/compatibility-lib/net/imap-unit.rkt

@@ -1,7 +1,7 @@
 #lang racket/base
 
 (require racket/unit
-         "imap-sig.rkt" "imap.rkt")
+         "imap-sig.rkt" net/imap)
 
 (define-unit-from-context imap@ imap^)
 

pkgs/compatibility-pkgs/compatibility-lib/net/mime-unit.rkt

@@ -1,7 +1,7 @@
 #lang racket/base
 
 (require racket/unit
-         "mime-sig.rkt" "mime.rkt")
+         "mime-sig.rkt" net/mime)
 
 (define-unit-from-context mime@ mime^)
 

pkgs/compatibility-pkgs/compatibility-lib/net/nntp-unit.rkt

@@ -1,7 +1,7 @@
 #lang racket/base
 
 (require racket/unit
-         "nntp-sig.rkt" "nntp.rkt")
+         "nntp-sig.rkt" net/nntp)
 
 (define-unit-from-context nntp@ nntp^)
 

pkgs/compatibility-pkgs/compatibility-lib/net/pop3-unit.rkt

@@ -1,7 +1,7 @@
 #lang racket/base
 
 (require racket/unit
-         "pop3-sig.rkt" "pop3.rkt")
+         "pop3-sig.rkt" net/pop3)
 
 (define-unit-from-context pop3@ pop3^)
 

pkgs/compatibility-pkgs/compatibility-lib/net/qp-unit.rkt

@@ -1,7 +1,7 @@
 #lang racket/base
 
 (require racket/unit
-         "qp-sig.rkt" "qp.rkt")
+         "qp-sig.rkt" net/qp)
 
 (define-unit-from-context qp@ qp^)
 

pkgs/compatibility-pkgs/compatibility-lib/net/sendmail-unit.rkt

@@ -1,7 +1,7 @@
 #lang racket/base
 
 (require racket/unit
-         "sendmail-sig.rkt" "sendmail.rkt")
+         "sendmail-sig.rkt" net/sendmail)
 
 (define-unit-from-context sendmail@ sendmail^)
 

pkgs/compatibility-pkgs/compatibility-lib/net/smtp-unit.rkt

@@ -1,7 +1,7 @@
 #lang racket/base
 
 (require racket/unit
-         "smtp-sig.rkt" "smtp.rkt")
+         "smtp-sig.rkt" net/smtp)
 
 (define-unit-from-context smtp@ smtp^)
 

pkgs/compatibility-pkgs/compatibility-lib/net/uri-codec-unit.rkt

@@ -1,7 +1,7 @@
 #lang racket/base
 
 (require racket/unit
-         "uri-codec-sig.rkt" "uri-codec.rkt")
+         "uri-codec-sig.rkt" net/uri-codec)
 
 (define-unit-from-context uri-codec@ uri-codec^)
 

pkgs/compatibility-pkgs/compatibility-lib/net/url-unit.rkt

@@ -1,7 +1,7 @@
 #lang racket/base
 
 (require racket/unit
-         "url-sig.rkt" "url.rkt" "url-connect.rkt")
+         "url-sig.rkt" net/url net/url-connect)
 
 (define-unit-from-context url@ url+scheme^)