Fix some scripting tutorial examples

Some of the examples in the scripting tutorial were regularly getting
out of sync with the base scripts (because the line numbering would need
to be updated).  Fixed this maintenance burden by using small example
scripts instead of actual Bro scripts.  These small example scripts
do not need to be kept in sync with the bro base scripts.

doc/scripting/data_type_record.bro

@@ -0,0 +1,25 @@
+module Conn;
+
+export {
+	## The record type which contains column fields of the connection log.
+	type Info: record {
+		ts:           time            &log;
+		uid:          string          &log;
+		id:           conn_id         &log;
+		proto:        transport_proto &log;
+		service:      string          &log &optional;
+		duration:     interval        &log &optional;
+		orig_bytes:   count           &log &optional;
+		resp_bytes:   count           &log &optional;
+		conn_state:   string          &log &optional;
+		local_orig:   bool            &log &optional;
+		local_resp:   bool            &log &optional;
+		missed_bytes: count           &log &default=0;
+		history:      string          &log &optional;
+		orig_pkts:     count      &log &optional;
+		orig_ip_bytes: count      &log &optional;
+		resp_pkts:     count      &log &optional;
+		resp_ip_bytes: count      &log &optional;
+		tunnel_parents: set[string] &log;
+	};
+}

doc/scripting/http_main.bro

@@ -0,0 +1,7 @@
+module HTTP;
+
+export {
+	## This setting changes if passwords used in Basic-Auth are captured or
+	## not.
+	const default_capture_password = F &redef;
+}

doc/scripting/index.rst

@@ -362,8 +362,7 @@ decrypted from HTTP streams is stored in
 :bro:see:`HTTP::default_capture_password` as shown in the stripped down
 excerpt from :doc:`/scripts/base/protocols/http/main.bro` below.
 
-.. btest-include:: ${BRO_SRC_ROOT}/scripts/base/protocols/http/main.bro
-   :lines: 9-11,20-22,125
+.. btest-include:: ${DOC_ROOT}/scripting/http_main.bro
 
 Because the constant was declared with the ``&redef`` attribute, if we
 needed to turn this option on globally, we could do so by adding the
@@ -825,8 +824,7 @@ example of the ``record`` data type in the earlier sections, the
 :bro:type:`Conn::Info`, which corresponds to the fields logged into
 ``conn.log``, is shown by the excerpt below.
 
-.. btest-include:: ${BRO_SRC_ROOT}/scripts/base/protocols/conn/main.bro
-   :lines: 10-12,16-17,19,21,23,25,28,31,35,38,57,63,69,75,98,101,105,108,112,116-117,122
+.. btest-include:: ${DOC_ROOT}/scripting/data_type_record.bro
 
 Looking at the structure of the definition, a new collection of data
 types is being defined as a type called ``Info``.  Since this type

testing/btest/Baseline/doc.sphinx.include-doc_scripting_data_type_record_bro/output

@@ -1,6 +1,6 @@
 # @TEST-EXEC: cat %INPUT >output && btest-diff output
 
-main.bro
+data_type_record.bro
 
 module Conn;
 

testing/btest/Baseline/doc.sphinx.include-doc_scripting_http_main_bro/output

@@ -1,6 +1,6 @@
 # @TEST-EXEC: cat %INPUT >output && btest-diff output
 
-main.bro
+http_main.bro
 
 module HTTP;
 

testing/btest/doc/sphinx/include-doc_scripting_data_type_record_bro.btest

@@ -1,6 +1,6 @@
 # @TEST-EXEC: cat %INPUT >output && btest-diff output
 
-main.bro
+data_type_record.bro
 
 module Conn;
 

testing/btest/doc/sphinx/include-doc_scripting_http_main_bro.btest

@@ -1,6 +1,6 @@
 # @TEST-EXEC: cat %INPUT >output && btest-diff output
 
-main.bro
+http_main.bro
 
 module HTTP;